[Punch-through DIP shunts]
I used a STAPLE (straight out of the red Swingline) on
my first one.
I think i did somethling like that years ago.
I have also soldered a jumper wire across an opend bar on one of these
shits to close it again. I know the TRS-80 TechRef tells you not to, but
it's held for oeer 10 years now so I am to too worried about it.
-tony