Amir On Friday I refitted the headbadge to My Holdsworth using a couple of copper rivets that I got from Nick at Lloyds. The rivets were about 1cm long, however I shortened then to 5-6mm including the head.
We put a piece of 1-1/8" steerer tube in the vise to serve as an anvil, then hammered on the rivet's domed head via a drift with a matching depression in the end. It is a two person job- one to hold the frame over the anvil, the other to do the whacking.
I put a dab of silicone gasket behind the badge to damp out any future rattles.