Ayatollah Khameini and Obama costumes are OK. Zionist costumes are still forbidden unless embroidered in 10″ or larger letters with the word “Haman.”
This year a hashgachah is required on all Israeli flags to assure they are completely flammable. The flags must be labelled “only for burning which be completed before the Purim seudah. If charred elements escape into space you own, recite kul chamirah.”
Have a Freilich Pirim!