I wiped up a testing board for my 1-12" speaker cab. It will allow me to swap speakers in and out quickly by just dropping in a speaker and setting the board over it. I used 2 big hand screws and made some pressed in nuts for the cab so it's easy. I'll put alligator clips on the wires too. This should make it easy to go from speaker to speaker before I forget what one sounds like when testing or comparing them.
Yeh, nothing fancy just a way to change speakers quickly and not wear out the screws / nuts that hold the speaker in. I thought I would make it down and dirty in case others want to make one, super simple. The only thing I really made was the nuts I pressed in the cab.
That's what's so great about it - simple yet effective. No need to build an over-complicated contraption when something so easy will do.