A recent fad that is simmering here in Oz is the 'rubber band gun'.

As kids we used to hook a band around the end of the index finger, take around the back of the thumb, then grip between thumb and hand. Relaxing the thumb let it fly - you could get rather accurate with practice.

These little wooden 'repeating rubber band guns' have a star wheel, with trigger, you hook a bunch of bands around the front, and one each on the arms of the wheel as you cock it.

Would have killed for one of these as a kid... :-)

Actually, I did make one up out of thick cardboard when a kid - single shot with trigger - gee! old memories! Three layers of card, part of the inner one allowed the single piece trigger-release hook to swivel on a brass paper fastener, the rest of the middle layer held the thing together.

"simmering" - well as soon as the kids start taking them to school, they'll get 'banned'... then very popular :-)