These are the 4 houses of harry potter logos. Can be use as brooch.
Update with V2 files, fixed a little problem in the mesh.
Update with V3 file of Slithering Logo, so it is fixed.
I print them at 1000% scale, but it works fine also at 300%.
I made also keychains from these logos: https://www.thingiverse.com/thing:3725109