Musubi Tee Design

I’m looking for a T-shirt design featuring a musubi in the same overall style as my reference image. I want the musubi to be the main focus and look hand-drawn/illustrated with slightly imperfect, textured linework, rather than super clean, polished, or realistic. For the musubi, I want the Spam, rice, and nori to be clearly recognizable, with some hand-drawn shading and texture to show the sauce and furikake. The overall design should feel cool, casual, slightly vintage, and like local Hawaii surf/skate shop merch rather than a cute cartoon character or a traditional retro diner design. I’d like to keep the color palette fairly simple—black, cream/white, and a muted orange or reddish-orange for the Spam. I’m open to small adjustments, but I don’t want it overly colorful. Please keep the artwork suitable for screen printing on a T-shirt, with bold enough details that it will still look good at different sizes. Here is a reference of what our musubi looks like. I’d like the illustration to stay true to this shape and style, while giving it a hand-drawn, slightly vintage feel for the T-shirt design.