Look for a one-frame phone number on the Toontown bathroom wall. It's supposedly under the "For a good time, call Allison Wonderland" graffiti. This is one that's been rumored, but nobody has ever come forth with visual proof of.

I wouldn't be surprised if the rumor turns out to B.S., but I always assumed that about Betty Boop's nipples and I was proven wrong there. (And as I said before, Disney did cut out Tim Allen's phone sex number joke from The Santa Clause after the original VHS and laserdisc, because "1-800-SPANK-ME" turned out to be a real number for a real phone sex hotline.)