Just a suggestion here, but get one of those action hero dolls dressed in scuba gear and mount him on a sheet cake decorated as under water? OR, you can make a sheet cake with black icing (neoprene) with the gold DIVE insignia on it. Dunno.... juswt a stab in the dark.
Debbi
Wilton makes a couple shaped cake pans that I think you could turn into a scuba diver...Little Hero and Handsome Guy are the ones that come to mind.
Here's a cute one too...you could just make the head if you wanted
http://www.securecakestore.com/acatalog/diverandshark.jpg
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