Cute! That would be fun to do...
My friend Abby did this in her kids' play room, and it is adorable. She has pictures on her blog, the link is on mine if you're super bored and want to look at it.
http://elephantabbie.blogspot.com/2010/02/alphabet-wall.htmlCopy and paste please. I think I like hers better.
That is a great idea.