Extra tall lack riser because I wanted to keep a paver with pads under my Ender 3, and my filament runout sensor is sort of tall..
Total height is 240mm, probably should have made it taller as my max printing height is still a little shy of standard. There are screw holes but I found I didn't really need them.
v1 is a vanilla looking one and v2 has a bunch of holes intended to save filament. You'll need to print with supports for both, only to support that bottom lip. For the v2 version you'll have to block off all the supports that get insert in the polygons.