Amazon has Play-Doh Compound Collections for $3.49 each plus Free Shipping with Prime.
Play-Doh Confetti Compound Collection $3.49 – Add-On only https://www.amazon.com/dp/B011MIU…-BbE72J6Y8
Play-Doh Sparkle Compound Collection $3.49 – OOS https://www.amazon.com/dp/B00IGNW…-Bb7TQPY6M