And that’s exactly why I don’t think this is a good idea.
You can send out a fully working yoyo, and then either not get it back, or else get it back in not the same condition. People are notorious for abusing rental gear. The mindset is “ain’t mine, beat it up and return it”.
I say if someone wants to do it, then fine. Their risk.
I was asked this week to send out a yoyo for someone to try. I turned down the request. I get too much stuff stolen, damaged and abused. Even at meets I hold, inconsiderate kids go abusing my yoyos but apparently “it’s OK, it’s not theirs so not their problem”.
My suggestion:
Get one’s self out to where the throwers are: meets, contests and things of that nature.