Wonderful idea Ignacio … but I didn’t want to react until I built one myself, so here we go.
I tried the idea of John G4YTJ, using a clothes peg, and yes it works John !
I used 4 pieces of 2.5cm of a 5mm wooden stick I had, so I used round posts for everything. I didn’t need the extra square blocks either, since the clothes peg is thick enough by itself to make the holes for the spring.
I didn’t have any copper foil, so I peeled some off a copper clad PCB (by making a cut with a sharp cutter knife, then heating one corner with a soldering iron until it came loose and then peeled off a whole stripe of copper). Then fixed the foil with some super glue.
I did my drilling too much in a hurry, so one of the side post was not in the right place, but I solved that by filing off the end post, as you can see in the picture.
Also if I had to make another one, I would put the front post a bit further to the front (maybe make the base 8 cm long).
The peg has the tendency to shift upward when keying, so I made a “lock” from a piece of the PCB from which I just removed the copper. It is just “press fit” on the wooden posts.
I have no video of it, but I can confirm it works !
An evening well spent !
I may take it on my EA6 holiday in May, as a backup for my Pico Palm, and who knows we can make a qso here or there …
73 de Luc, ON7DQ