I agree crypto king, even if its small things like a t-shirt and iphone case, its a great way to trade catcoin on a small scale basis and also great way to advertise, i am working on lots of little projects at the moment.
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