Halloween Costume Contest EventsHalloween Costume ContestHalloween Costume Contest Explore This Section Halloween Costume Contest October 30, 2020 Virtual/Online Submit your costumes by tagging us on Instagram (@rcbcosl). Prizes TBD.. check the RCBC OSL IG for updates! Prize categories will be: Couples Funniest Best Look-Alike Most Original Scariest People's Choice Grand Prize (Best of all)