"$25 Off $25.01 at eBay (YMMV)" Fri Aug-28-20 09:40 PM by handle
I got this from Slickdeals.net:
eBay.com is offering a $25 Off $25.01+ Purchases w/ coupon code HAPPY25 (apply at checkout) valid for select eBay Accounts. Shipping may vary depending on the item you're purchasing. Note, please login to your account to verify the coupon is valid for you. Must purchase items that are $25.01 or more to qualify and apply the listed coupon code. May be case sensitive as well.
Do this: 1)Go to eBay. 2)Log in. 3)Add over $25.00 to your cart 4)Begin checkout 5)Enter the coupon code HAPPY25 (all caps.)
If your account qualifies you will get a $25.00 discount.
It worked for me - I bought an Apple Watch band for $4 after coupon.
I have no idea how it determines if it will work for you, it's worth trying though. If it doesn't work just abandon your cart.