via studentsoftheworld.info

Zac Efron’s signature is worth a ton- and not just for his multitude of tween and teen fans!  We’ve told you about Efron-signed flip-flops, hard-hats, and now, the newest addition… baseballs!

Zac is among many stars like Drew Barrymore, and the Kardashians who have all signed on (literally) for an exclusive, 10-day eBay auction that will raise money for Little League Baseball.

Starting Friday, August 21 (which is tomorrow!!), baseball and Wildcats fans alike will be able to bid on over 40 celebrity-signed baseballs, with all of the proceeds benefiting Little League.  If you’re interested in getting involved in the auction or just checking out what’s being offered, type “Baseball Design Across America” into the eBay search box!

If you don’t win the auction or it signed baseballs just aren’t your think, you can help out young baseball players across the country by getting involved in one of the many projects on Do Something’s project page!  Like 9-year-old Evan’s project “Step Up to the Plate,” which collects new and used baseball equipment for kids who cannot afford their own!