Ipifini's Programmable Liquid Container, currently a protoype, allows the user to add their own choice of flavors, colors, or fragrances to the liquid in the main body of the container. From Yenra.com:
For example, a programmable cola bottle with buttons for lemon, lime, vanilla, and cherry flavors as well as a caffeine button allows for thirty-two potential choices of soda. A programmable paint container with twenty pigment additive buttons allows the consumer to choose from one million colors.
Link to Yenra.com article, Link to Ipifini (Thanks, Peder Burgaard!)
UPDATE: Thanks to all the readers who point out that the bottle is prophesized in Jeff Noon's short story Solace. Link
