Nice idea, if I may suggest something for smartphone cases, maybe 3D shoudn't be a bad idea and instead of a painting or a sticker the catcoin logo can have a 3d shape which I believe can be appreciated by people, and I'm sure that cryptofans who own personnal FDM 3D printer would be glad to reserve some catcoins for their work
Yes 3D would be good to have, at least it will be current and initiative. I have more little products which can incorporate catcoin but the ultimate goal would be to have a catcoin merchandise store where you can buy catcoin products using catcoin.
For the time being though it would be great to get some catcoin products out there just to get some added attention and supply the catcoin community with these items.