Ultimate Putty Challenge Game Roadtrip Games until a spark of genius

until a spark of genius revealed that one of these minerals created an incendiary explosive that could be used to create gunpowder

Stack the wooden tunnel pieces on top of each other to make a rainbow

or bridge expansion set

Assembled Size: 8

nylon string

Ultimate Putty Challenge Game Roadtrip Games until a spark of geniusUltimate Putty Challenge Game Known for creating the best putty in the universe, Crazy Aaron has many other interestslike playing games! He created Ultimate Putty Challenge as a way to have even more fun with Thinking Putty. This collection of 25 fun, fast paced games has something for everyone with head to head challenges, creative competitions, and skill based activities. Plus, it includes 4 exclusive Thinking Putty tins you won't find anywhere