I'd also go with the NOW Comic's version of the Hornet costume, which was a green Mardi Gras mask almost identical to Parallax's or Kyle Raynor's Green Lantern mask (and which pre-dated both DC character's first appearances), a green fedora, a green trenchcoat, and a yellow scarf. He'd use an electrolaser pistol (a "sting" gun) instead of his famous gas pistol.
