Hey just wanna tell you that I'm going to be taking this tutorial to be in my school project!..Can you tell me how many cardboard have you used for this?? :P
Why not just buy heater wire... Seems like it would be cheaper than a soldering iron. I guess your trying to show working with what's on hand... But I don't have two soldering irons I don't have even one... I like how you used a USB vs many other videos I've seen that take power cords off random appliances. I feel like that's an item many people have on hand(USB cords)