Why?
Here is a pic of the one I made for my bike (instead of buying an expensive switch online) and it is legal to use according to NHRA rules. Just pick up a lanyard for around $5 and drill a small hole in the switch, put in screw and done. I didn’t get a long lanyard at the time it was the only length I found which is fine, I just hook it to my glove while most people with longer ones hook it to there jacket. Works the same either way.
