Gather plastic tops, (1 per critter), chenille wire, googly eyes, wool fiber and hot glue. Not a wool fiber enthusiast ? Substitute fiber with extra large pompom.
Cut chenille wire in 3 equal lengths. Fold in half to make legs, (our critters had 6 legs). Insert wires (legs) through the holes in the tops, with equal length on each side. Repeat for other wires. Set aside.
Cut length of wire for antennae as well.
Teach children to lightly felt the fiber, while talking to them about what "felting" is and how it is done. Begin with wool fiber that has been combed and fluffed out using a pet comb, (if you don't have fiber combs). The idea is to felt it just enough to maintain a round-ish shape.. We used a squirt bottle to wet our hands while felting.
Glue fiber to top. Decorate with eyes and antennae. Adults need to do the gluing but let the children tell you how to position eyes and so forth.