Coupons.com: Buy 2 Get 1 FREE Play-Doh 4-Pack! January 4, 2012 by Jennie The links in the post below may be affiliate links. Read the full disclosure.Print Email Head on over to Coupons.com to snag a awesome Buy 2 Get 1 FREE Play-Doh 4-Pack Coupon! This is up to a $2.99 value. This could make for a really nice deal when matched up with the Christmas toy clearance deals that are out in stores right now!