Sumo Bumper Boppers – inflatable body bumpers – are only $13.99 with this Groupon (value $19.99).  Free Returns.  Heck, why should kids have all the fun!

Outfitted in a kind of inflatable hot pocket, kids can happily bop, bounce, barge, sock, and steamroll into one another. Air cushioning helps to shield them from bumps. In addition to playfully emulating the ferocious clash of sumo wrestlers, the boppers can mimic bumper cars or illustrate the principles of directional forces to young minds.