What is a fun way to hand out kids prizes/favors other than just bags?

Before you blow up your balloons, hide small favors inside…like a sticker, candy, etc. When the party’s over tell everyone to take a balloon and sit on it. Another option can be to put a piece of paper with a number on it and put it in the balloon. Each number corresponds to a pre-wrapped prize (you should wrap and number prizes before party and place on table).