I think those are sososo cool!  I know someone who has it and I think it would be just fantastic! You could write notes to yourself....draw....I want one haha :)
So you know those super cute names made from letters found in  everywhere?  That didn't really make sense...so here's a picture from Shanty-2-Chic.com  Some letters are found on signs or something.  They're really cute I think :)
Well, there's this person on flickr that has a TON of letters! I don't think they're as cute as the ones found in nature, but some of them are still pretty creative. 
here's the site- http://www.flickr.com/photos/lwr/collections/72157594587080023/
You can download them for FREE (my aunt spent $4 for ONE letter once...these are free) and print them off!
I don't know why.  Maybe for a birthday or something.
Here's my button tree!  Sorry for the bad quality- I took the picture with the family camera, but since I can't get those pictures off it, I had to take a picture of the picture with my camera.  To make:
1) Took canvas (or anything would work) covered it with scrapbook paper, modge-podged it down (careful of wrinkles).
2) Drew a tree with a paint pen (I attempted to copy the one from Pinterest), glued buttons down with hot glue gun, and wrote the word pray.
Simple and cute!
A picture I painted.  It's just on canvas, and it was pretty simple.  Fiery colors for the sky, black silhouette, and I used a paint pen for the words.