This reminds me of the time when I was flying out for the holidays in 2002.. I was at KLAS, and had my scanner on me while I was waiting for my flight. I tuned to the ATIS just in time to hear the following (I thought it was cute/funny, which is why I remember it)
McCarran International Airport Information Uniform, one eight five six Zulu. Wind two two zero at four. Visibility one zero. Sky clear below one two thousand. Temperature one three. Dewpoint minus one. Altimeter two niner niner seven. Visual approaches in use. Landing runway two five left, one niner left, one niner right. Departing runway two five right, one niner left, and one niner right. Simultaneous approaches to crossing and parallel runways in use. Notices to airmen: gobble gobble happy Thanksgiving. Ground control combined on one two one point one. Helicopter control open on one two three point eight two. Advise on initial contact, you have information uniform.
After Thanksgiving, they replaced the NOTAM with "ho ho ho happy holidays". It would be kinda neat if the tower could include something like that in the ATIS again.