Wire spool from old packing tape core

I use a lot of packing tape, and am left with empty cores all over the place.

I also have a common need to put wire onto spools.

Hence this thing, it converts an empty cardboard core from packing tape (ID about 76-77mm is pretty standard) into a spool for holding wire. The sides have a couple holes to hold the "inside" end and notches in the top edges to hold the loose end.

There is also an optional stand with crank and "cog" to make spooling up the wire easier, you only need one stand