Your groom will be an especially handsome creature in tuxedo pants, $510, paired with a striped shirt, $445, and black vest, $595, all by Michael Bastian. Bow tie, $15, by Tie Bar. Hat, $220, by David Steele. Cufflinks, $40, by Thomas Pink, 212-838-1928. Rings, $475 and $1,500 each, both from Doyle & Doyle. Cane from the collection of David Menkes, 212-989-3706.