Making the Gomez and Morticia Adams costume was fairly easy. For Gomez, we went to a thrift shop and bought a dark suit, and found a thin dark tie. We colored his hair black with spray, and attached a fake mustache that we cut to be like Gomez's. And of course...we bought a cheap cigar.
For Morticia, I used an old black prom dress and attached black fabric to the bottom of each sleeve. My hair was already dark and long, so I fixed it in a similar style. I applied make up like Morticia's, and wore long fake fingernails.
In total, both costumes cost us about $15. People weren't sure who he was...until they also saw me.