Enameled Copper Magnet Wire – 11 meters / 0.1mm diameter : ID 3522 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: One Pound of 21 Gauge Magnet Wire for Science Projects | Copper Wire Enameled Temperature Rated 356 F School and Lab Experiment : Industrial & Scientific
Amazon.com: 32 Pieces Magnetic Cable Ties Silicone Cable Management Ties Reusable Cord Clips Magnet Cable Straps for Bundling, Organizing, Holding Cable Wire Cord to Fridge, Home Office Car Supplies, 3 Shapes : Electronics