Have a plug that falls out of a power bar / power strip? Have something like a Desktop PC or 3D printer that's critical it doesn't loose power?
Check out this power bar cord lock that prevents a power cord from falling out if knocked around under your desk.
Adaptable to any type of plug as long as the cord protrudes vertically from the power strip. Change the dimensions in the OpenSCAD model to match your particular power bar. Should work for Swiss, European and US power bars.
Attribution: Uses the Bezier curve library by Alexander R. Pruss.
I make stuff