Wire wrapping is a quick and reliable way to build prototypes and one-off pieces of hardware. The multiple cold welded joints makes it even more reliable than PCBs in certain environments like high vibration. [Justin Jones] couldn’t find his favorite wire wrapping tool or anyone selling a replacement so he decided to improvise. He constructed a new tool using a pen tube, small screwdriver, and a bit of metal cut from a floppy disk. The only thing it’s really missing is a built in wire stripper.