Shark Tank Invention

In engage, we're making an original invention that fulfills a need or solves a problem. My group is making a safe punching bag. This solves a problem because people can use a punching bag at home without boxing gloves without fear of getting hurt in the process. We're using Play-doh inside our bags instead. We'll use vinyl instead of leather for the bag so it won't hurt at all. The bag will include 2 zippers. One at the top and one at the bottom. When the Play-Doh dries, the bottom zipper dumps out the old Play-Doh and the top zipper puts in the new Play-Doh. You'll have to zip the bottom one up before you put the new Play-Doh in.