How to make a wind up toy with a rubber band. This DIY rubber band racer is so much fun! Let the kids make a rubber band race car with the items you already have around the house. Make sure the rubber band is new and has Make a rubber-band powered wooden racer! A great, pocket-sized toy to explore transformation of energy. A wind up toy, for example Instructions to build your own spool racer. Thread the other rubber band loop through the washer. I recommend using your index finger to quickly spin the drive wheels in circles until the rubber band is wound around the drive axel many times (picture 3). com/ …more Introducing the SpoolRacer – a fun and eco-friendly toy that gives empty cardboard filament spools a whole new life! If you’ve ever found yourself with a bunch of leftover spools, this little project is the perfect way to turn them into something awesome. Explore simple physics and find out how fast your car can go. You just need paper cups, battery and rubber band. More turns means more potential energy. Designate a clear area of the floor for testing the racers. vki6 s3tvs7 jt7 yldu eopln rt9g jgga aqsphq jil5in r2nzx