I'm not sure if anyone has posted but I was browsing a wrx site and found some good reviews about WC Lathe Werks shift knobs. Here is the link for the 370z shift knobs
350Z & 370Z - WC Lathe Werks | Truly Unique Shift-Knobs, Proudly Hand-Crafted in The USA!. I'm prolly going to get the bead blasted titanium