In my Humanities class in college, we had a group project to make a virtual reality something of our choosing but we hads to use sights, sounds, smells, etc...
Our group did a Hawaiian vacation so we had a power point slide show that I created complete with getting on a plane and then slides of a tropical beach etc... We brought in beach towels for everyone to sit on, played some tropical music on a cd player and some Jimmy Buffet, We had fruit kabobs and a friuty drink and for the smells I bought some tropical fruit Glade plug ins where the oil heats up and fills the room with the smell.
We got an "A" for the project.