OCEANIC, $72 a set
You could give them a gravy boat — which they won't use until Thanksgiving 2010 — or you could give them snorkel sets, which they'll use the week after the wedding. (Just make sure you send them before the honeymoon — and that they're not honeymooning in Florence.) Each set comes with fins, a snorkel, a mask, and a zip mesh bag for easy draining and packing.

TO ORDER: www.oceanicworldwide.com for store locations.