The FAST Fiberglass Mold Graveyard is a wonderfully strange field of retired molds from the company that made giant roadside figures, animals, signs, and novelty objects. You wander between shells of ice cream cones, cartoonish people, animals, and other half-recognisable forms.
It is rough-edged and outdoors, so go in dry weather and do not expect a formal museum. That informality is the point.