How to bend Silverware
Metal Bender by Bruce Cheaney -- Homemade metal bender constructed from bar stock, steel plate, and bolts. http://www.homemadetools.net/homemade-metal-bender-9
DIY metal brake - Im thinking you could modify it for tighter bends, too, by making the top part narrower so it fits between the wingnuts on the bottom piece if you fold it all the way over.
Homemade metal bender constructed from flat steel bar stock and steel rods.
how to bend tubing accurately http://www.pirate4x4.com/tech/bendin_tube/index.html
CNC Cookbook: Blog: April - June 2006
Bender- I could probably modify another like this for bending tubing.
A compact version of a wood curving jig. Possible project out of metal to pack in the survival gear?
Baileigh Industrial RDB-250 Tube/Pipe bender - bending flat side oval - YouTube