The cap-balls have 14 systematically placed caps in order to build both 60° and 90° structures. The Cap-Ball-Template is a shell that fits perfectly around your tennisball with 14 premade holes, ready to mark into with a tusch. Easy for school-kids to be toolmakers.
The bottlecutter-ring helps to position either the tuschmarks for scissorcuts or use it as a cutland for hobbyknives (not for children)
Both tools are helpful for co-production in groups at school, clubs eg. or at home with your family.
All tools are made of upcycled and safe materials, but must be guided by grownups - especially in the cutting proces. Best to use scissors with children.