Baby got a new pair of shoes

Zack got great mileage out of his 5 1/2 StrideRite shoes, but they were getting more and more difficult to put on so we brought him into the kiddie shoe shop expecting to get a size 6. Well, his feet measured at 6 1/2 and it is suggested that you buy a size up, so we got size 7 1/2 shoes! They look a bit bigger than the old ones, but Zack can run around in them just fine with no tripping. Now the only question is what to do with the old ones. Bronze them? Toss them over a neighborhood telephone line? Encase them in lucite? Turn them into a dog chew toy?