From 2Jane.com:
"Give your kitchen or bathroom a stylish makeover with these Tile Tattoos by Mibo. Impervious to water and moisture, these heavy duty stickers will add life to the wettest walls of the house. No glue required for application and no sticky residue if they're removed."
4.25" squares sold in sets of 6.
They are only $16, and there are several style and colors to choose from. I love it.