Materials - Gingerbread People
- Modeling clay - sculpt originals
- Scrap plywood, cardboard strips - for casting
- Liquid latex - for mold making - Tap Premium Liquid Latex
- Plaster of Paris - backing for mold
- Casting material - Durham Water Putty - inexpensive and available at most hardware stores
- Wood blocks, wire, Gorilla Glue - for attaching to wreaths
- Drylok Extreme Masonary Waterproofer paint without sand
- Acrylic paints
- Garland - craft store green pine garland
- Lights - light strings built in garland or added
- Plastic ornaments
Step 1: Sculpt and Create Mold
Hot glue strips of cardboard around the finished clay masters to create a box around each figure. This contains the latex but mainly is for the plaster backing pour. It just needs to be tacked in place, the first coat of latex seals it in place, but make sure it is tight against the plywood.
Follow the instructions for the liquid latex to lay down multiple layers. Be sure to push the first layer underneath all of the undercuts with your brush and pop any bubbles formed against the clay master. They recommend 8-16 layers with some drying between. We didn't put in any strengthening cloth but you can if you have something that might tear or you are producing hundreds of items. We ended up laying down 10 layers and used up half of a $20 container - so $5 per gingerbread person was great though a bit time consuming vs. 2-part one-step $$$ molding systems.
When the latex has dried. Fill the cardboard dam with plaster of paris. Strip off the cardboard then the plaster and latex should unmold nicely.