Quite a few months ago I read in a magazine an article about this sort of thing, looking for letters in your surroundings. I tried a different version though.
I was going to try a complete A-Z in one afternoon...but that was before I did a 'normal' A-Z which was blo*dy hard! Might try this in the future though, once the memories have faded....! LOL
Just seen this and thought it would be fun to do!
http://www.geeksugar.com/Geek-Tip-Spell-Your-Name-Flickr-Letters-407056
regards
Sharon (Sciroccojade)