Click on the image to see and read about it. Some of the more interesting things that Grandkids enjoy, are mostly curiosities of Science. One of them is the "Amazing Belt Hook", a facinating toy that Grandpa remembered from his childhood. Make one for your Grandkids and watch their faces light up with amazement. Grandpa has developed Rocket plans which will allow you to build a Homemade Rocket for About a Dollar.   It uses the same engines as the store bought ones. The Rocket plans include a Diagram, step by step Directions and a List of the most common items to use. Grandpa's Homemade Rocket for About a Dollar plans are available for download and they are free!