Just a quick sketch of how I think the field might look. In theory, the players would stand or sit in the middle, maybe on one of the benches, and throw bean bags into their respective hoops. The seekers from each team would be looking for the snitch in the box of ping pong balls blindfolded (snitch would have some puff paint texture)
This is all in theory. Need to do some beta testing once I've built the hoops.