Museum (too long to tweet)

I would like to set up an exhibit where people can activate a camera to take a picture of the last picture the camera took, and watch the image fade over time as the quality of the copies sink into obscurity.

Soda Rareness Scale

Coke, Pepsi and Sprite have a value of zero. Any sodas beyond that have a value of one. Qualifiers add one to any value. The exception to this rule is the qualifier 'Diet.' 'Diet' cannot raise a zero to a one, but is worth one in all other circumstances.
The higher a soda's final number is, the harder that soda is to find.
Examples:
Coke = Zero
Coke Zero = One
Dr. Pepper = One
Diet Pepsi = Zero
Diet Cherry Pepsi = Two
Diet Cherry Dr. Pepper = Three

UPDATE: Specialty sodas deserve their own SRS. Unique brands such as Tom's and Stewart's do not follow this system.