Reddit mentions of Crayola Washable Finger Paints, 4-Count ( 4 ounce tubes ), Red, Blue, Yellow and Green

Try this: https://www.amazon.com/Crayola-Washable-Finger-Paints-4-Count/dp/B002VBXL52

It's non-toxic, since it's meant to be used by kids, so it should be safe for what you're planning.

Washable fingerpaints! Let 'em be artsy! I recommend doing this in your kitchen or somewhere with tile, though, just to be on the safe side. Plus you can give their finished artwork to their parents, who will see that you entertained them without just plopping 'em in front of a TV.

Umm... I think you should buy this cause I know you like doing crafty bits and bobs and also being a kid, so FINGERPAINTS :)

and this for your furbaby or babies :)

When I was about 6, I loved to draw but I was always bummed to use the "kid supplies" to draw with like crayons and markers. My mom went out and got me "real" art supplies because she said I was a "real artist" and needed the "big people" supplies. It meant the world to me, not only because the stuff she bought me was good but that she also believed in me... so, I would recommend for Adela:

• Professional Oil Pastels
  
• Good quality colored pencils (in a tin... the tin is key to feeling grown up)
  
• Artist SKetch Pad
  
• And, of course, an easel
  
  Now, for Isla, I'd definitely get her her own set of kids colored pencils or crayons so she doesn't try to steal her sister's "good stuff." Just get her a few packs of the crayola stuff. In addition to that, I would suggest:
  
  
• Kinetic Sand (there are other colors available if you search)
  
• Create a Book craft
  
• A Princess Tent to hide her messes
  
• Finger Paints

Anything colorful will work, and plushies tend to last a while this Alice and Wonderland set is a good example of long lasting plushies that will take some wear and tear.

Artwork for her room in bright colors would also be really cool.

Crayons, paints, art supplies. Crayola makes a lot of colorful art supplies for kids, like these washable paints. Then just get some giant paper to go with it and you've got some entertaining supplies!

I don't wanna grow up. I need this to give my sister in law a heart attack when I show up to finger paint with her girls!

http://www.amazon.com/Crayola-4ct-Washable-Fingerpaints-Primary/dp/B002VBXL52/ref=sr_1_108?s=toys-and-games&ie=UTF8&qid=1299260017&sr=1-108
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http://www.amazon.com/Uncle-Milton-Moon-My-Room/dp/B000EUHKUE/ref=sr_1_42?s=toys-and-games&ie=UTF8&qid=1299259756&sr=1-42
?

Happy birthday to your kiddo! Mine will be two during the first week of May. This is on his wishlist. Thanks, UPS!