Bee pictogram

Source is some picture found on the Internet, vectorized and modified for printing.

There are 2 STL available:
* **bee-simple.stl**: just the bee (for customizing and scaling)
* **bee-screw-holes.stl**: bee with 4mm screw holes at tips of wings

To be honest, bee on the photo is scaled by [0.7, 0.7, 1] and isn't finished because the printer got jammed at about 3.5mm (I think it was bad filament). But after turning upside down it still looks OK :-)