Geeetech prusa bed calibration clip

I recently bought a geeetech prusa i3 mk8 wood (short review for those interested: brilliant printer, really cheap, quite good printing quality). While watching a video of the aluminum version of this printer, I was inspired by the bed leveling screws on it, I wanted to make the same for my wood version.

The idea is that you can level the bed with a screwdriver from above, without have to fumble with the wingnuts on the underside (where my fingers definitely does not fit in). This design wil