This is how i made the arm gauntlets for my Boba Fett Starwars halloween costume. The professional ones run about $300 and since i had more time than i did money...i made my own. I did not document the building process, which took about a week but I will show you the different parts of construction of the gauntlets that may help someone else with their project.
Step 1: Right arm gauntlet
Since there was not a a lot of information about making Boba Fett gauntlets, I was left to figure it out for myself... To start both gauntlets i needed something round to go over my forearms, so i went shopping at wal-mart and found tombstone flower vases...yes, the vases that sit on tombstones in the cemetery. I cut out the bottoms and pulled out all the styrofoam in them. Next i used a small bow saw and cut down the middle so they would expand over my hand when putting them on.
Step 2: Side view right arm gauntlet
I used screws drilled through the inside/out to mount the foamboard. I cut out the shapes I needed based on pics of the arm gauntlets used in the movies, hot glued them into place and covered them with papermache. After everything dried, i gave them a coat of silver paint. let dry, used liquid latex to make battle worn scares, let dry, then the color paint.
Step 3: Sideview of left arm gauntlet
This is the left arm gauntlet. Built the same as the right.