There are 20 items in the Making With Biology Summer CELL-out, some of which have options. I've grouped them into 5 bundles, each one a different pledge level. Each item only appears in one bundle, except the mini-pin, which appears in the 'Mini-pin' and the 'Pin Bundle'.

Each bundle also appears in the Add-ons section, allowing you to choose more than one bundle. A few of the items - mainly those that haven't previously been available to purchase, such as campaign freebies - are available as individual items in the Add-ons section.

The five bundles are:

£ 5  Mini-pin - chose 1 X mini-pin. (Contains one item - not technically a bundle!)
£ 10 Playground Bundle - a bundle of 5 stickers.
£ 15 Pin Bundle - choose 1 X Engulfed Castle pin + 1 X mini-pin.
£ 20 Adventure Bundle - a bundle of 6 stickers + the Key-to-the-Castle Keychain.
£ 25 Organoid Bundle - 1 X sticker, 1 X A5 sticker sheet, 2 X postcards, 1 X fridge magnet, 1 X wooden hanging decoration.

I will likely add additional items mid-event, once Deadly Tangle Clothing and Accessories has shipped.

All items in Making With Biology Summer CELL-out are Ready-to-Ship.

Surveys are due August 25th at the latest, and all rewards will be shipped by September 15th 2026.

Select this option and choose one mini-pin from the in-stock mini-pins:

Each mini-pin is 20mm (0.8") at its longest measurement. They are made from recycled hypoallergenic stainless steel in the UK. The pins are nickel-free, printed using VOC free inks, and have a solvent-free resin dome. Each pin has a scorpion back-stamp, a black rubber clasp, and a backing board (pictured).

For the story behind these pins, take a look at the Attack of the Crenelated Mutants! campaign.

Choose this sticker bundle and receive 5 X glossy vinyl die-cut stickers:

1 X Spheroid Cells Sticker
1 X Marbles Sticker
1 X Playground Sticker
1 X M. mycoides Sticker

PLUS either S. ep-aydon-idis Sticker OR E. coli-narfon Sticker (your choice subject to availability).

Select this bundle and choose 1 X Engulfed Castle pin (40mm (1.6")) (graphic below) and 1 X Mini-pin (20mm (0.8")) (see 'Mini-pin' above) from the in-stock pins:

Like the mini-pins, the Engulfed Castle pins are made from recycled hypoallergenic stainless steel in the UK. The pins are nickel-free, printed using VOC free inks, and have a solvent-free resin dome. Each pin has a scorpion back-stamp, a green rubber clasp, and a backing board (pictured).

For the story behind these pins, take a look at the Attack of the Crenelated Mutants! campaign.

Choose this bundle and receive 6 X glossy vinyl die-cut stickers PLUS 1 X Key-to-the-Castle Keychain.

The stickers are:

1 X Hooded Pitohui Neurons Sticker
1 X Head Torch Glow-in-the-Dark Sticker
1 X Moth Plant Cells Sticker
1 X Tent Sticker

PLUS either Compartmentalisation Sticker OR Castle Sticker

AND either S. tintag-enes Sticker OR Morax-kidw-ell-y Sticker

The Key-to-the-Castle Keychain, Head Torch Glow-in-the-Dark Sticker, and Tent Sticker have not previously been available to purchase - all three are also available individually in the Add-ons section.

The Key-to-the-Castle Keychain is made from 100% recycled acrylics that were destined for landfill and incineration. These perform as well as standard virgin acrylic whilst being VOC and HFC free and significantly kinder to the environment.

Pick this bundle and receive 1 X Organoid Wooden Hanging Decoration, 1 X glossy vinyl die-cut Pomegranate Sticker, 2 X postcards, 1 X A5 eco-paper sticker sheet, and 1 X your choice of the remaining Cell Painting Fridge Magnets.

You can read more about the background behind these items in my Drawn to Cells? Curious Magnets and exCELLent Holiday Shop campaigns. The postcards were given to backers of these campaigns and the A5 sticker sheet was made for an in-person event. Neither of these items have been available to purchase until now!

The Organoid Wooden Hanging Decoration is made from responsibly sourced wood from FSC or PEFC certified woodlands - with a 4 mm (0.16") hole and comes with a black cotton loop for hanging.

The incentives are all stickers for this Summer CELL-out, and this is how you can qualify for them:

Pre-Launch Follower bonus: follow the campaign before the launch and receive two free stickers, a paper Pomegranate Sticker and a paper Spheroid Cells Sticker when you back the project. Note that these are different versions to the Pomegranate and Spheroid Cells Stickers in the bundles - the ones in the bundles are vinyl.

Early Bird bonus: back the campaign within the first 48 hours and receive this adorable Pixie Dust Skateboarding Spider Sticker absolutely free.

Returning Backer bonus: if you've pledged to one of my previous projects then you'll qualify for a free Glow-in-the-Dark Dinosaur Sticker.

And to credit the artists: my children have been such avid supporters of my campaigns that I wanted to thank them by making some of their drawings into stickers. The Skateboarding Spider and the Dinosaur are theirs :)

All items are Ready-to-Ship and will ship from the UK.

The amount you pledge during the campaign will be charged within 48 hours of the campaign end on July 22nd 2026.

Shipping fees are not included in this amount. Backer surveys will be sent in the first week of August, and this is when you agree to the shipping fees owed. Where there is a choice to make in your chosen bundle, it's in the survey that you'll tell me which item you'd like to choose. Please be reminded that as a Ready-to-Ship shop, stock is limited. Items could go out-of-stock as other backers make their choices. It is therefore advisable to complete and submit your survey quickly as possible!

UK backers: Rewards will be sent out via Royal Mail 48hr Tracked post (approx. 2-3 working days).
The estimated UK shipping price is £ 4.00.

International backers (non-UK): Rewards will be sent out via Royal Mail International Standard (without tracking), which is estimated to take 6-7 days.
The estimated international shipping price is £ 6.00-12.00.

International backers are responsible for all import and custom duties that may be incurred in their country. US orders need to pay 10% baseline tariff when paying for shipping fees via the survey. This is applied to both the cost of the order and the shipping cost.

Please note, I am unable to ship to backers in the European Union or Northern Ireland due to the GPSR.

All surveys are due by August 25th 2026.

Cards will be charged for shipping fees when I am ready to ship - you will receive 48 hours notice that your card will be charged. You must pay for shipping at this point; otherwise, you will not receive your rewards.

All rewards will ship by September 15th 2026.

Returns will be accepted for refunds. I will check all rewards for defects before sending them out, but if you find a flaw or any damage, please send photographic evidence and I will send out a replacement. If a replacement item is unavailable, I will issue a refund for the item.

Hi, I'm Kathryn, an illustrator excited about cell biology and a scientist who likes to draw! This is my fifth Backerkit campaign!

I became fascinated by biology in my first year at art school, and made paintings inspired by the brightly coloured microscopy pictures in the medical books in the library. For my first campaign, Drawn to Cells? Curious Magnets, I printed these Cell Paintings onto fridge magnets. Some of these magnets are available in this Summer Cell-out!

In January, I took part in Pintopia 2026 with Attack of the Crenelated Mutants!, creating a pin collection which asked, "What if a bacterium was as big as a house, or bigger - big enough to engulf a castle?" The remaining pins are available in this Summer Cell-out!

In April, I co-ran the Beasts and Botanicals group-collab with Jess aka Loadofolbobbins! We brought together 18 creators to celebrate life in all its forms. My project, Deadly Tangle Clothing & Accessories, is currently in fulfilment.

In September, I'm launching a new campaign, I Heart Cell Biology, as part of the Super League of Science '26.

Make sure you check out the other projects in the Summer Pin Sale Extravaganza! Here are some that I love: