I just got a call from my daughter-in-law's brother. He wants me to do their wedding cake. First part, no problem- 1 full sheet and one 1/2 sheet for the guests.

Second part- a small "fun" cake for them to cut. They want me to incorporate each of their interests. He loves Star Wars and she is just graduating and will be an elementary teacher plus she loves girlie/pink/princess type stuff. Their wedding colors are turquoise and light green. I've never seen Star Wars so I guess I go rent and watch that so I know the good guys from the bad.
Any and all ideas would be appreciated.

How about Han Solo and Princess Leia? Han Solo was the rogue hero of the the first three movies (in order of filming, not in chronological order in the story). Not to spoil the surprise for you, but Princess Leia, the heroine (lovely, girly and a great role model, like any teacher should be), ended up being his girlfriend.