you could make a nice new event with that (if the boomerang can pick up items) you could do it like who picks up the most items from a big hole that guy wins
and those items are all bouncing to walls and eachother

and ofcourse the people can't stand in the hole but have to pick items from a certain spot...
winner gets the money worth to the items he collected so every item has his own value like:
A tv is worth 1 gralat
A teddybear is worth 0.5 gralat
and keep going on like that...
Also the player could choose the money or points and if the player collected enough points he/she will get a new npc weapon...
I would love to see such a game...