I was tired to allways loose the power connection and was thinking about a stabelizer. I tried with help of the thunderbolt and - yes! it works, it's pretty stable.
I didn't try to make a destroying move but I'm sure it will brake the PLA and nothing else.
Here is a short video

I can fully recomment it :)

There is a support you can break easily.

As usual I share the source (Openscad). I suppose you can use the 'customizer' but I never used this (because in Openscad this is soo muuch better!!). I used letters as parameters, and it's hard to describe what what is, so I added my notes as a photo..

Print instructions

0.4mm nozzle, 0.2mm layer hight
the built-on support can easily be broken away.