Silicon (and other) molds

You can cast parts in silicon (soft) or resins (hard) and make many of them

• Robot, cyborg and zombie body parts…. Faces, arms, etc… make enough for an invading swarm
• Crazy shaped cookies, sugar decorations, edible clay…. (or edible cyborg parts)
• Costumes, armor, futuristic weapons, and other big parts… http://makeprojects.com/Project/Making+a+Hard-Shell+Mold/306/1#.UQqdNb_7KSo
• Toys and game pieces… or household objects

• http://laura.jansen.usesthis.com/ - costumes
• http://shawn.thorsson.usesthis.com/ & http://protagonist4hire.blogspot.com/ - big costumes
• http://protagonist4hire.blogspot.com/p/my-list-of-useful-links.html - how tos
• http://www.etsy.com/listing/117100186/combat-garden-gnome-minesweeper - combat gnomes