The CC Delrin Pico Pull is a good lightweight option. Titanium & stainless steel are nice, but heavier and depending on your favorite method of carry (neckwear?), a lighter weight option may be preferable; Delrin is a stable, black polymer, very lightweight. YMMV, so Ti, SS, polycarbonate are options too. The brass corrosion/patina thing may be a drawback.