Don’t make me pity the fool! Hop in the black van with the red stripe and don these great A Team fancy dress costumes.
Two warnings though. Do not, under any circumstances, fly to the party and make sure you drink plenty of white russians.
The BA Baracus fancy dress costume is easy you just need the mohawk wig, face paint and lots of fake gold jewelry. For the rest of the gang you are going to have to get creative.
For Hannibal you need a grey wig, fake cigar, khaki pants, denim shirt and a gun holster.
For Face a smart suit and a lock picking kit will work. For extra points break in to the party with the kit rather than ringing the bell.
For Murdoch go for an eighties denim jacket and baseball hat combo or even just a straight jacket.