Mo0nboots allow a user to bounce like they are on a trampoline anywhere. This sounds like a great idea, but trampolines are generally confined and safe areas built with durable material. A plastic case with springs and tethers is not only a major tripping hazard, but not durable. A finished product's longevity is only as long as its weakest essential part. For this reason, the bunjee cords and tethers in the design below would cause the product to fail and I learned to always consider this.