Phone numberInside the Ink & Paint Club... initially talking to Jessica Rabbit gives you the response "Find my Phone No. and give me a call". Indeed, if you search the leftmost table in the club you will find a phone number for "1-800-232-3324". Presumably this was the tip line for the game when it was released. Later on, the phone number switched to another company and for a period of time it led to an "Adult oriented" phone service.
Information also contributed by David Grobowski