Turn your old bowling ball into a conversation piece.                                                                                                                                                                                 More
How to Mosaic Grout a Bowling Ball
More of my bowling balls that I done..
Very cute  saw this here  http://threeoldkeys.blogspot.com/2012/06/melon-balls-bowling-balls.html
GE clear premium Sun Proof, Freeze Proof, Waterproof silicone caulk for gazing balls, and other garden glass art
How to repurpose a bowling ball as a gazing-ball substitute for garden art. Cover with stained glass or pre-cut glass...marbles, etc.
cool mosaic mirror
STEP BY STEP GUIDES: How to turn bowling balls into yard art