There is a plethora of cool and campy activities for a Star Trek party from playing trivia games to listening to William Shatner's "spoken word" albums.
You must get your hands on a William Shatner "spoken word" album, such as "The Transformed Man," and delight guests with that classic Kirk staccato as audible ambiance. Search online for this classic to give all a memory that will last a lifetime.
Leonard Nimoy sings on his album, "Mr. Spock's Music from Outer Space," which is also a necessity on your Star Trek party playlist.
Nichelle Nichols, Lieutenant Ohura, came out with many albums and actually sang with greats like Duke Ellington before her Star Trek days. One of her songs, "Charlie X," from her album, "Down to Earth," was featured in a TV episode.
We found a You Tube clip where Ohura sings as Spock accompanies her on a space age zither.
For more trivia than a Star Trek convention would spew, go to the online universe and dive in. Play a formal game where the host calls out the questions and guests write answers on paper. Or simply post the questions along with photos on the wall for guests to happen upon at their leisure.