I have always liked this one : http://www.instructables.com/id/Build-a-Nintendo-NES-PC/ Make an old Nintendo into a gaming pc. The guy who made this instructable died shortly after making it. Cant remember what happened to him exactly.
Leave $15,000 of motorcycles in a gravel driveway uncovered 24/7, Where small children play on and around them or pay $40 a month to be locked up and covered, then walk a couple blocks. It was an easy choice. (I ride my bicycle there)