Here you have some placeholder ideas in case the association needs to organize a stall or "an action point" that requires some interactive settings for fun.

• Have a box with a small hole on one side that is only slightly bigger than a pint-sized beer can. Give a bucket full of empty beer cans (bigger ones could yield extra points) and let the guest try to throw the cans through the hole in to the box. Nippon fanatics can try and paint the box to look like a Hamtaro character or even better, Guu from "Jungle wa itsumo hare nochi Guu" where the hole would be the characters mouth.