Some years ago I was asked if I could create an STL for the "Jigsaw tank", which exists in the 1970s DC Comic universe. The backstory is as follows In issue #150/Oct 1971, entitled “Death of the Haunted Tank”, the M-3was knocked out by a German AT gun while crossing a river so Jeb and his crew had to ditch it. As the battle raged on aroundthem, and with no other spare tanks available from the HQ, they were ordered by their CO to immediately proceed to a nearby“tank graveyard” and assemble their own tank! Through the miraculous timeline in the world of comics, the crew scavenges parts and wreckage of other dead tanks andimmediately builds the “Jigsaw Tank” which is made out of different tank parts. There was drawing of the JigSaw tank, noting it used most of the running gear of a T-34, a 20 mm cannon for the hull gun, and parts from various other AFVs and aircraft. I did the file up and it is pretty cool. If anyone wishes to use the file, I asked that as I was offering my time free to design it, that you make a small donation to an animal shelter in your home area. Deweycat would appreciate that.