Jedimanda is a crafter, designer, and cosplayer. She makes amazing costumes to show her love of fandoms, then goes to show them off at a convention or in a competition.
Tools for Foam
9mm SAC-1 Stainless-Steel Graphics Knife (The blade extends for the depth you need)
25mm XH-AL Fiberglass Rubber-Grip Auto-Lock Utility Knife (This blade also extends for your needed length.)
Tools for Fabric
ESK-1 Beginner Craft Knife With Stand (This works great for seam ripping!)
PIB45-1 Stainless Steel Pinking Blade, 1pk (This works with the 45mm Ergonomic Rotary Cutter. There's also a scallop and wave blade available.)
Tools for Thermoplastic