okay i was visiting another site and came across this really neat idea. they took a bowling ball, and made it into a gazing ball for the yard. they took mosaic tiles and glass beads and used e-600 to glue them on, then used white grout to fill in, really cute and a neat idea. i work with challenged adults and want to make these however i am worried about the cost and the weight of the balls. any ideas on another item i can use, it would have to be heavy so they don't go flying away if it gets windy.