This is a simple visor clip for a pair of sunglasses. v0.3 is a little bit thicker, but I am still having the issue of bending in a hot cart in July in the north east of the US. Using Blender, I took MacGyvers very cool visor card clip design and enlarged the space to instead accommodate a pair of sunglasses. I also did come simplifying in the geometry. She prints in about a half hour on my MakerBot Replicator 2 @ 0.3mm