I just figured out how to make my own blog button with a grab box! Yay!
Anyway, it took me quite a long time to figure out how to make one, with the help of my blogging buddy (who I happen to know in real life as well :) ), Katie @ The Terpblog, (THANKS KATIE!!!) so I thought I'd let you know how this blog button was made.
First, edit your picture here.
Make the button size 125x125.
Save it to your computer.
Upload it to photobucket. You have to create an account at photobucket, but it's free.
And here's the tutorial on how to make one with a "grab box".
Hope it works for you!