Molding and Casting

Sources:

injection mold (video )
- Injection mold design and making
- Benchtop Injection Mold Machine
Thermoforming
insert, overmolding (video)
vacuum (video)
blow mold (video, video)
rotational, centrifugal (video)
vacuum, pressure assisted
die, investment casting (video)
flexible, soft, short-run production (video, video)

Resin printers include:

Creating a silicone mold from a 3D printed part (YouTube)
Filament Print that can withstand injection mold temperatures (YouTube) - they use PET-CF, most likely PETG-CF, carbon-fiber reinforced PET. I have not tested this to confirm its effectiveness.

Low-temp wax
Machineable wax: for prototyping, lost wax casting, dental CAD/CAM, jewelry manufacture and more.
- DIY machineable wax
Rigid foam
Gesso, epoxy, shrink wrap, hot air
Wood
Alginate gel
urethane rubber, plastic, colorants
clear rubber epoxy
silicone, FAQ, high-temp, PDMS
latex
Thermoplastic, Thermoset polymers: Plastics are the most common materials for producing end-use parts and products, for everything from consumer products to medical devices. Plastics are a versatile category of materials, with thousands of polymer options, each with their own specific mechanical properties.
- Thermoplastics:
  - Acrylic (PMMA)
  - Acrylonitrile butadiene styrene (ABS)
  - Polyamide (PA)
  - Polylactic acid (PLA)
  - Polycarbonate (PC)
  - Polyether ether ketone (PEEK)
  - Polyethylene (PE)
  - Polypropylene (PP)
  - Polyvinyl chloride (PVC)
- Thermosets:
  - Cyanate ester
  - Epoxy
  - Polyester
  - Polyurethane
  - Silicone
  - Vulcanized rubber
Calcium sulfate
- Desicant, coagulant, plaster, gypsum, drywall
- Drystone
Portland cement
- calcium silicate, aluminum/iron oxide, calcium sulfate
- Hydro-Stone
metal
- Cerrotru casting polishing
- aluminum clay sand glass
ceramic
food-safe
natural