That is a tough questions since you have no clue as to sizes. I would keep an eye on the auction sites and just pick up a few deals. I would be sure to pick up a youth recurve and a youth compound. You have a great opportunity to introduce some of your guests kids into the sport if you can provide them with something. The youth recurve will handle any size child incase they are a bit small for a youth compound. My daughter still shoots her Bravo recurve that I picked up at Bass Pro for cheap.