Here's an in-depth video on how to make a functional gauntlet with simple hand tools. You can make it with metal like the video shows, or even just cardboard if it's for a costume.
You can download the template and written instructions for this gauntlet over at my website for five bucks. Otherwise, you can just watch the video to follow along—or to inspire your own version.
Also, check out my previous gauntlet version that was previously featured on WonderHowTo.