Though sheer boredom I was was looking for a Shunt resistor .
So going though years of stock piled parts etc . I needed a 0.05

@ 50 amp .
So not finding anything that was suitable . I went into.. How hard can it be to make it

Copper wire ... No
Steel wire .. Hum has a high resistance but very unstable with temperature another No.
Putting my soldering Iron on the cleaning wire .. Brain wave . low frequency .
Those stainless steel pads we use to clean our soldering iron tips . are 410 Stainless steel 11.5% nickel chrome

Yes . looking Good . measured it 18mm is showing 1.1030

.
Also taking a piece about 15cm long powering it from my lab power with 5v @ 1amp it become a very handy foam cutter .
These steel cleaning pads Have many uses . Maybe not the best .
So just rapping this wire round a couple of copper posts , A few times I was able to get my 0.05

for testing an quick repair of my
electronic load .
These wire cleaning pads have a melting point of about 1500 C Resistance aprox 0.5

per cm
I guess they aint Quality controlled so there will be different specs .
I'm sure there are many other DIY thing that can be made from reusing this stuff
Have Fun and don't burn your fingers .
More Ideas welcome