If you are sitting at home, you can play! Just specify what room of your house you are in and then what color you are spying on. I will let someone else start the game just in case I don't reply fast enough.
I am currently in my bedroom.
I spy with my little eye - Something green.
(On a side note, I am not sure how well this game will work out since we are not all able to see each other's homes/rooms!)