Ball and Chain
thingiverse
Update: for a truly awesome One Piece wedding band check out V2 at http://www.thingiverse.com/thing:607177 I made this hilarious little gift for my buddy at work who just got hitched, and it actually fits on my finger - I'm about an 8 - but you might need to resize it depending on your ring size. Since I wanted it to print without supports, I sliced the ball in two. My prints came out okay with 10% infill, but the top was a bit sloppy; possibly increasing infill would solve this issue. Notice that the sphere isn't attached to the chain, so you'll need to trim off some of the ring at the end and join them manually.
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