Found a neat little compilation of the World's Most Beautiful Frogs

American Green Tree Frog (Hyla cinerea) Image Source 

And this one, from another compilation at the same site, is quote Willy Wonka "You're Weird" :))

Hairy Frog (Trichobatrachus robustus) Image Source 

Actually, Scienceray is a good site with some great pic-posts to share with kids! 

For eg: