The process is quite simple:
Any seller can donate to a nonprofit while listing an item on eBay. Sell anything from collectibles to cars and donate a portion through eBay Giving Works. Learn how.
Give as little as 10% (5% for motors) or as much as 100% from anything you sell ($5 minimum donation required). And with eBay’s generous fee credit policy, a percentage of your insertion and final value fees equal to the percentage you’re donating will be credited back to your account!