Flower Pot with water reservoir.
Print everything with 100% infil besides the water level probe it shall be printed with 0% infill (so it can float on the water)
print the pot_inside_2 with a brim and flip the pot_inside_1 on the flat side to print it well then glue the parts together with superglue or someting.
also add a small skewer to the water probe.
if not watertight for some reason, try a Higher extrusion multiplier.
printed in petg on 0,1mm detail on a Prusa i3 MK3s
The author hasn't provided the model origin yet.