Reviews

• Scratch Purple Crayon Rocket By Eldred Pickett (July 1, 2009)

  Brief: There is a great source of cheap HPR kits that's probably close to your home. Where, you might ask? Toys R Us! I'm sure many of you are shaking your head thinking you never seen any rockets there, let alone HPR. Look in the younger kids' section. There are coin banks that look like big crayons. That gives you almost everything you need to build a high-power rocket for $6.99. You have the ...