Polyurethane Critters

 I’ve used polyurethane as a lab in Chemistry.  But I never considered making fun critters!  Home Science Tools has a kit.  Flinn has these instructions—which my teens used creatively.  Once, the kids filled a glove and added red food dye to film a safety video; the dye spurted out of a foam hand after a scalpel cut.  But I didn’t think about critters!  Now, I need to shop for a deal on two-part polyurethane foam.