My metal direct class this year had the fantastic opportunity to visit a company called FedTech in MN. They were nice enough to help our school (St Olaf College) by printing a few small metal laser cut images.
I decided to sketch of a dragonfly in 2D using Graphite (http://www.ashlar.com/2d-3d-drafting/2d-3d-cad-graphite.html
) and then I drew in fold-up tabs that would enable it to turn 3D.
After submitting the files, we went to their lab and watched the process as the giant laser cutter did its work. From here, I folded my dragonfly up along the perforations I had drawn in earlier.
The finished product didn't exactly turn out as nice as I wanted it to (the tail wasn't long enough) but the wings for sure turned out pretty gossamer, just like real dragonfly wings. I love the wings :)