Hand-me-downs are a beautiful thing. The bane of a younger sibling's existence can be a financial lifesaver for economy-minded parents. While the practice of passing an older child's things down to a younger child might be motivated by fiscal responsibility and a desire to reuse what is still usable, here's another reason to love hand-me-downs: you can get great stuff with a celebrity connection and support a good cause at the same time.

That's the idea behind Johnson's Celebrity Hand Me Down Auction. Famous parents like Matt Damon and Elisabeth Hasslebeck are passing on their child's outgrown things to the highest bidder in support of charities such as the March of Dimes, Save the Children, Zero to Three and Baby Buggy.

The auction runs from April 29 to May 9 on eBay and will feature items such as Matt Damon's diaper bag, an Adidas track suit worn by Mariska Hargitay's son, Julianne Moore's high chair, Elisabeth Hasslebeck's car seat and more. Sign up now to receive email notification when the auction begins.