Amazon has a big buy 3 for the price of 2 sale on select entertainment items, including toys, books, DVDs, and games. I found a few Play-Doh sets included in the offer, so here is a deal idea. Remember that the $25 shipping minimum is calculated before the discount is taken off, so you can potentially get some items shipped to you free even without prime.
Play-Doh Kitchen Creations Cheesy Sandwich Play Food Set – $7.88
Play-Doh Builder Treehouse Toy Building Kit – $9.99
Play-Doh Lollipop 4-Pack of Pretend Play Candy Molds – $8.99
Total = $26.86
Less Get 3 for the price of 2 offer
= $18.98 + tax shipped free!