Just doing some casual browsing and found a couple more amenity sites:
Renaissance Richardson: http://www.stayatmarriott.com/amenities/dalrd
Austin Airport Marriott South: http://www.stayatmarriott.com/amenities/ausap

For attempts at viewing other properties, just type the hotel codes after http://www.stayatmarriott.com/amenities/. Keep in mind that only a select group of properties currently work with this URL.

I'm sure that with a little browsing others can come up with more of these ^