Holds three Oral-B toothbrush heads... however, the current version prints very poorly. It's clearly some funky meshing problems in the source model during STL export (from SketchUp).

UPDATE: I've uploaded a "toother" version which is derived from the OpenSCAD file. It prints well with only minor clean-up required.

WARNING: brush_holder_v2.stl has problems during export... it prints strangely (no doubt from the lazy fusion method I used to build it from chs' model)... I recommend using the OpenSCAD version included here.