BH-604 or BH-903, and tart it up using either a simple Flash customizer or downloadable Maya, PDF, and PostScript templates. You'll want the templates to really go crazy, like submitter Mase90 did for the hideous, supposedly Sex Pistols-inspired skull-and-chains-encrusted model above. Voting is open to anyone through the end of the year, with the top 10 being whittled down to 5 by a panel of experts. Winners will get to see their designs turned into reality -- though not actually put up for sale.
[Via Nokia Conversations]