It's gotten a bit more difficult to find Jack Black products. I'm glad I found them here. Shipping was fast as well.
Willoughby Micro Crew Lightweight w Cushion Sock | Taupe
Create winter fun and ponder polymers! Makes about 2 cups of cool, snow-like stuff with volume swell and water-absorbing properties. Hands-on science and an engaging sensory project. Magic snow-like stuff for yetis and chilly chemists!