This is a splash guard – an additional part for @ulitiy's floater for the ultrasonic mist maker. I have not included his original floater; you have to download it here:

https://www.thingiverse.com/thing:3900020

… or you can download my remix here:

https://www.thingiverse.com/thing:3977730

The splash guard is very lightweight (approx. 17 grams) and it is a tight fit. However, the legs bend easily, and you can adjust its distance to the floater quite a bit.

OpenSCAD source files are included.