Printed on waterproof vinyl, with holographic versions that shift color as they catch the light. The artwork is the same as on my paintings and coloring pages — the aviator cat, the mouse asleep in hydrangeas, the mouse spa, summer girls in flower dresses — cut down to something you can stick on a water bottle.
They survive washing up, condensation and a rucksack. People use them on laptops, planners, journals, phone cases and the lids of very well-travelled flasks.
Printed and cut by hand in my studio in Spain, and small enough to post anywhere cheaply.