I first discovered these poking about on Etsy. If you do a search on wall graphics a ton of sellers come up. I found this company I think through Domino Magazine: Blik
And I purchased their Re-Stik Undersea set for the kid's bathroom. Most of their bathroom is painted a crisp white, but the wall that their sink is on is a fun, bright turquoise. Actually Benjamin Moore's "Peacock Feathers". So here are some shots of the wall graphics. Hard to take photos in their little bathroom!
I also did some wall graphics in their play room, but have not taken any photos yet. Probably because that room is almost always messy! These graphics are so fun and whimsical and best of all - easy and not permanent :-)
Here is Blik's web site:
Blik Wall Graphics Web Site