umm the x men dress up as the TNG Star Trek crew .. Xavier as captain Picard cause the sir Patrick Stewart through line is too strong. I'm thinking... wolverine as worf but he refuses to do makeup so he's just in a different funny yellow suit. Geordi's visor is too good not for Scott to take the opportunity, I think Deanna Troi for Storm they both have to do with emotions from a simplistic character perspective and Jean is Dr. Crusher maybe? it would work out for their costumes they're both ginger iirc. BUT that leaves Riker (who besides the visor thing would be Scott,,) and Data. because im a fan of the '92 series im tempted to say Morph could be Data but if they did an extended Star Trek universe thing then he could be Odo and I think it would be fun.