KnitPro Zing Double Pointed Needles (x5) DPNs x 15cm / 20cm All Sizes 2mm - 8mm
Not cheap, but I like it; they're my 2.5mm standard.
I needed an easily identifiable set of 2.5 mm needles, as I do not have a guage to measure this size. With this lovely set of red needles I can eye-ball my small needles now and sort them.
10mm 100 Silver Two Piece Double Cap Tubular Rivets Leather Punk Craft Repair
They look very good on my leather knitting belts, for holding the buckles.
120 Set Leather Rivets Double Cap Rivets Metal Fixing Tool Kit for Leather Craft
For small leather items
These rivets are of several small sizes and suit varying thicknesses and layers of leather. Very useful and they lock well and look smart.