OH I did this last year
I got a ton of fridge boxes then made them into games. One we cut cot out about 2/3 of 2 of the side sections and the front so there was just a full back and bottom (i know it sounds funky..) Well any way we made the found into a door so you can step into the box. Then we tacked ballons up to the back wall and you threw darts at them and won a prize
yeah but i don't know if you want to have toddlers playing that.. .
But there parents might like it.