1950-60s teardrop marker light lens. Perfect for a 1980's battlemech. Thanks to Triffid_Hunter for rendering main.stl, as I couldn't get openscad to do it. markerlens.stl uses a different rendering method. You may have to scale this for the size you want, I seem to have accidently designed it 10x too small, and I dont have enough tea left to wait for it to re-render.