My partner wanted to mount a submersible pump in a terracotta plant pot to go in a small raised pond we're setting up. So I designed this. It fits in a 17cm terracotta pot from Bunnings.

The pump is a generic 12V (also comes in 24V version) submersible brushless water pump that can be bought from aliexpress etc. The base is removeable and slides off, which is what I've done to fit it in this mount. I used two 4mm x 300mm cable ties to hold it together. The intake grille is snug on the pump outlet. Depending on your pump and printer, you might have to scale it up a little in the x and y (it worked ok as is for me).

I printed it in PETG as that was suggested as safe for aquarium/pond use.

Designed in FreeCAD which I'm having another go at learning. I've included the FreeCAD file, but there are probably things done incorrectly.