I'm guessing there is probably something in the rules that prohibits wearing a buckler on each elbow/forearm, but given the amount of newish shield feats that have been put into play recently, is it possible to work a brawler type melee character who uses said shield feats, gauntlets and gratuitous head butts?
Just spaghetti on the wall
OH
You actually can't use a Buckler to make Shield Bash attacks, so many of the feats you can pick would be fairly useless. You'd have to upgrade to a Light or Heavy Shield.
There are a few threads that discuss the idea of using two shields, but I personally would avoid that.
Could you not use a Heavy Shield, a Spiked Gauntlet and a Headbutt?
Duplicate thread. Go here, please.