Great job! Those are very cool and very inspiring. For mine, I made the "clam shell" halves out of sintra and was pondering what to add on. You've definately given me ideas and inspiration. What did you use to attach the add ons?
Yes. Lots of bondo. I glue the pieces of sintra together and then bondo them up with my trusty popsickle sticks. I then use a dremel sanding drum to sand down the crevases. I smooth them down a little more with hand sanding. The brass pipe is two different sizes inside of one another and my friend drilled out the outside one with a drill press for the heat shield. The "keyboard" on the missile gauntlet is the innards of an old cell phone (circa 1996). I used 1/4" sintra for these gauntlets. It bends best in the oven at 300 degrees fahrenheit for about 1.5 minutes. The ammo clip for the machine gun gauntlet is from a toy machine gun I picked up at the dollar store. Any other questions?
Build it Semi-functionnal by adding a real built-in USB key / SD card reader. It's one of my concepts, and can be useful when going to conventions! You can also fit a holographic projector in your gauntlet. And a spy darts launcher, wich fires funny stuff like microphones, cams, motion tracker.... could be interesting.