When we moved into our most recent place, there was no insert/screen for the bathroom sink. I could have dropped my whole toothbrush down that sink hole! I tried printing other popular designs on this website and others but found that the other inserts plugged up too easily. I designed this one and has been working great.

I printed in PLA, printed it upside down (as seen in the photo) and used paint on supports for the middle part when it starts printing the bottom part of the insert. It is important that you use filament/settings to avoid stringing so that this will prevent it from clogging easily. Or use a heatgun to get rid of those strings if your printer/filament produces some.

It has been working like a charm so far. Happy printing!