The toilet has a hole (pipe) that goes through the entire brick. You can run a marble (8 mm steel ball fits perfectly) or water through the toilet. The toilet is compatible with the "Toilet & Sewer Pipes Marble Run" game - set of bricks that work as water/marble pipes. Using the additional bricks to build a “sewer system” you then can drop a marble into the toilet and it will exit randomly out of one of the 2, 4, 8 or more exits. Or you can run water through the toilet and the “sewer system”.

I recently was able to print multiple multi-color models using super simple method of manual color change: just pull-out old filament, push in new filament, click resume. No need to use Unload and Load menu. No need to insert pauses in Bambu Studio, multiple colors on the same layer are supported.

Stop the birds!

This is a stowable bin that can be moved under the desk when not in use and easily removed for emptying.

Benchy

It was my 10-year-old daughter's idea to make a toilet brick with a hole trough the entire brick. She used a vernier caliper to measure an existing 2x2 brick, and designed the toilet by herself in Onshape. I only helped with print profile. It worked really well.(Edited)

Magnetic holder optimized for the scraper from Bambu Lab

2-color mini (1:3.5 scale) bowling pins for printing without an AMS.