You will need: Tools: Pliers Wire cutters Scissors Flashlight Matchsticks (to apply epoxy) Materials: Neodymium Ring-Shaped Magnets (enough to cover your adaptor plug with some overhang) Wire Studs ...
Neodymium Ring-Shaped Magnets (enough to cover your adaptor plug with some overhang)
Wire Studs (to fit into the power socket)
Steel Washers (asst. sizes, make sure your magnets will STICK to them)
Thin Copper Foil (Note: aluminum duct tape has too much resistance)
Two-Part Epoxy Adhesive
Calming Incense (to keep you sane while working with the fiddly bits)
My design for building this adaptor changed many times throughout the build due to trial and error, it is best to start out with too many pieces and then narrow it down to what you actually need than to be stuck without a part you really need.
Magnets: $2.45 each
Wire Studs: $1.65 for 10
Copper Foil: $10
Various Washers and Nails: $4