Resin Casting over brass tubing frame idea. 3D print a master pattern of the finished tumbler, make silicon mold of master, build brass tube frame, jig the brass tube frame in the silicon mold, add casting resin to mold, remove finished part. Additional part details could be added to the 3D printed part (i.e. Bolts, curved openings, letter, numbers.) to bring the part to life.
Just an idea, one of which I am working towards.