My kids are 7 and 3. We went to a Halloween party last night, a lunch with friends and then we all went together to a community event / fair with entertainers at a park today, in a couple days we go to a church festival, and on Thursday we're going trick or treating.
My 3 year old is ALL about Batman, so he's Batman. Our dog (an Australian Shepherd) is going as Robin (he actually likes his costume and cape, but we're not putting anything on his head). My 7 year old is going as an old-time gangster (I found pinstriped pants and vest with a white satin kerchief at a consignment store for $6, and that with a dress shirt and pinstriped derby hat that he already has, a mustache out of eyeliner, and a toy tommy gun, he's good to go). My husband is going as Chief O'Hara (Irish cop on the old 60's Batman show): a police hat, badge, and cuffs, with his own blue pants, shirt, tie, and jacket. I'm going as a campy villainess that "could have" been seen on the old Batman show (the only Batman my children know): I've named my character "Mean Mamma". I'm wearing a hideous bright pink floral housedress, cheap house slippers, a silver curly wig, silly frosted silver, goofy makeup, and a wooden spoon is my prop (my mom would threaten me when I was a kid with a wooden spoon, and this is kind of a cartoon version of her in the "Prozac Days" AND also mixed in a little of a villainess that was actually in the 60s show once: Ma Parker--but this character's totally in fun, nothing upsetting or "bad" about it).
So including the dog, we'll have 3 good guys and 2 bad guys in our group. The boys are totally excited about it.