You've gotta take video of the trampoline thing.
On kiddie pools we use them on puppies with bottles in them and other things that make noise to help train puppies to be less sensitive to strange noises at an early age. We throw kibble in there for them to go find and stuff like that. I use them to help cool the adult dogs down when doing any kind of play outside in the hot summer months. The hard plastic ones seem to hold up great. I can't speak to the soft ones.