Often the bow is the sun pad area utilizing a center filler cushion.
The blank canvas is wide open to your imagination. A convertible rear bench to sun pad has many options, and materials. Dry storage, or wet storage for fenders etc. Super light from carbon fiber. Fiberglass over wood, for the cheapest and in many ways easiest. Stainless is always beautiful. Aluminum saves on weight. Myself and others always appreciate seeing in process and completed work, please share.