I also need to make some rivets for one of my folders. I just ordered a $2.40 brass wire assortment (for rivets and pins) from Micro-Tools (www.micro-tools.com).

I also ordered a set which includes: Jewelers Wire Draw Plates, Wire Draw Tool, Vise, Pin Vise and Jewelers Saw from FindingKing on ebay ($68.32 with shipping and insurance).