Black tie event with navy suit - what shirt/ neckwear?
Do you have a picture of this? I feel like you may be able to get away with this and maintain a level whimsicality appropriate for a New Years celebration depending on exactly how business-like your suit and shirt are and how formal this bow-tie is. You certainly don't want to look like you're trying a poor man's tuxedo, but I don't imagine it would be very fun to celebrate the New Year like you're going to a board meeting. Is buying a more interesting tie out in town not an option?