Used teething ring, anyone? Celeb parents auction kids' old stuff on eBay.

Would you use a celeb Mom's old high chair or car seat? Moms can bid on celebitty items from A-listers like Matt Damon, Julianne Moore and Elisabeth Hasselbeck on eBay through May 9 and support various kid-friendly charities. We were buzzing about whether a used car seat (crumbs intact), wet diaper bag or a track suit with spit-up included would appeal to the average Mom--despite their A-list status.

Click below to get a peek at the items up for grabs!