I don't have the time/resources to work on this myself, but it would be interesting to see other's ideas about what is possible with 5 sense simulations in the near term.
Beach simulator:
Items required for full 5 senses (Rift + positional tracking is assumed):
1) lounge chair
2) Shallow sand box (for feet)
3) Lamp (for heat)
4) Positional tracking of a beverage.
5) Some way to get the smell of sea water in the air. Perhaps a fan over a tank of smelly salt water.
![Smile :)](./images/smilies/icon_e_smile.gif)
Sitting on the dock of the bay simulator:
The above, but swap out the lounge chair for a wooden bench and the sand box for a container of water. Something that has enough volume to kick your feet around a bit. I suppose you could use your bath.
Sitting under a tree simulator (for winter):
You get the idea.
Ha! I just had an image in my mind. I'm walking down the street and a neighbor is reclining in his front yard. His feet in a sand box, a rift strapped to his head, a cold beer in his hand, waving to some unseen woman in a string bikini. That'll be the day!