electric start mower key

Lost the key to start the lawnmower with its electric starter... WTF?!
Anyhow, there are no tumblers involved. This is just the handle, you need to take a 5mm rod, grind the end flat, and put a torque pin thru it for the handle. If you want more detail ask in a comment.
If anyone finds the origional laying around in the yard (its red) would be nice to retrieve it.
Meh...