Or you could do what I saw a Pride cosplayer do once, and make a backdrop of sorts to carry around. He used a stand-up cardboard like for science fair projects, and painted eyes and teeth on it. You could paint the vectors on one of those if you have enough skillz.
Past Cosplay: Death of the Endless (SANDMAN), Trinity (The Matrix), Austria (Axis Powers Hetalia), Orihara Izaya (Durarara!!), Mey-Rin (Black Butler)
Current Cosplay: Dodo Chaplet, Dalekח (Doctor Who)
Future Cosplay: Mags (Doctor Who, "The Greatest Show in the Galaxy"), Femme!Gambit (X-MEN)
For cosplay photos and selfies please visit my tumblr