My friend Jonathan Koshi, who is Hawaiian, posted his recipe for Spam Musubi. Koshi says, "Over the last 30 years the Spam Musubi has indelibly stamped itself on the local Hawaii menu. They are great snacks, highly mobile, and filling." Here are the ingredients and equipment list, from Notes From The Zeitgeist:
Spam Musubi Fo' RealRecipe Time! Spam Musubi
1 Can of Spam. Has to be the real thing. No substitutes.
1 Pkg. Roasted Nori Sheets (any kine brand is okay)
3 cups white short grain rice (any kine brand is okay)
Cup of water (not for drinking)
Beer (for drinking)