Cheap foam core boards

Foam core is super versatile making stuff. Together with hot glue you can make almost anything – doll houses, organizers, quick prototypes, kid’s constructions, models, displays, etc. The boards can be expensive at stationary stores. The cheapest source of foam board I know about are 20 x 30 x 3/16 inch sheets from the Dollar Tree store, at $1.25 per board. They are thin but sufficient and cheap. — KK