This is the best, worst idea I've ever heard of. Ever.
Best, because as a kid I would have absolutely demanded a 4-piece battalion set of Nerf Guns and me and my friends would have staged an absolute guerrilla war in my basement the likes of which people haven't seen since 'Nam. It finally would have been as fun as those commercials always make it out to be. Everyone has a gun with like 20 rounds of ammunition, none of that fire 4 darts and then have to go scour under the couch to pick it up shit. Just pure crossfire at its best.
The worst idea because I'd 100% be shipping things back broken or missing pieces. You're talking about kids, the most destructive force known to Earth. I don't think I had a toy from childhood that wasn't Jerry-rigged together with rubber bands and tape after a few weeks. We, as children, are just a violent breed, plain and simple.
Second reason its the worst idea? Be prepared for your kids to absolutely HATE you for a couple of weeks after you ship their new favorite toy back to the internet. I can't think of a more traumatizing thing as a child. Like "Hey Johnny, glad you've enjoyed playing with this Thomas the Tank Engine set, but the people of the World Wide Web need it back. Don't worry though, they're sending Percy next." Percy sucks. All green, not cute like Thomas. I would throw a two week temper-tantrum if that ever happened to me. You don't mess with a kid and his toys. I once ordered a set of 3-D sun glasses from a cereal box, saved up my 3 UPC's, mailed them in, and never got the glasses. I held a grudge against that mailman all summer long. Setting boobie traps along the side walk, leaving gross shit in the mailbox for him to stick his hand into, and straight up mean mugging him from my stoop. Like I said, you do not mess with a kids toys.
