We really like Styrofoam! We save white and black underlays from pizza and trays from fruits, and this is what we do with them:
First, we write on them with chalks (if black) or markers (if white), then we take a cocktail stick or something pointy and we start popping small holes along the lines, or drawing over the lines with the sticks.
It works great for fine motor skill development! They like the popping sounds, and after they are done with drawing – they usually entertain themselves with breaking the trays. Each time it breaks with a loud pop they squeal and giggle and keep going until only small bits are left.
At some point we used those bits as well to make wind chimes / outside tree decorations/ bird scares on a veggie patch together with the cut-up bits of drinking straws that we made when doing straw cutting exercise . They make a soft bell-like sound or maybe a whisper if you listen carefully.
We tried cutting them with scissors for cutting practice – it works too!
Really want to try doing some Styrofoam etching with them next. Need a half decent roller for that and pigment ink. Anyone got some knocking about they don’t need?