Without looking too much into the meanings behind their chosen costumes, here are some of their holiday takes on alternative identities:
DJ Minister of the Interior, Aryeh Deri be jammin'
A common target of satire, Defense Minister Avigdor Lieberman turns the tables, dressing as a character of Assi Cohen, who frequently imitates Lieberman
Minister of Sport (except baseball apparently) and Culture Miri Regev decides to clown around
MK Oren Hazan and his wife decide to go green
Yair Lapid goes for a distinguished tribe elder look
Ayelet Shaked is a deer with her daughter at the Megillah reading
MK Yael Cohen Paran is a tempest in a tea cup, perhaps?
MK Yehiel Bar reaffirms societal ideals of masculinity while apparently looking for parking