Mold your own delicious gummy worms and spiders—perfect for Halloween. This kit comes with all of the necessary ingredients to create your treats: a natural gelatin-like ingredient called carrageenan that comes from seaweed, mixed berry and green apple flavors to sweeten, plus citric acid to make sour gummies. After mixing your ingredients, use the included mold to make tasty gummy worms and spiders.

Thames & Kosmos was founded in 2001 by a science museum director and her son, who saw the great need and demand for better science education materials—resources for parents and their children that are more engaging, more effective, more relevant and more fun. The line has grown to include a variety of hands-on learning products including STEM experiment kits, board games, 3D light-up puzzles, magic sets and globes.