Found 3 Toynbee Tiles in one crosswalk on the way to City Hall! Two of them feature vague threats to other Toynbee Tile makers... Such is the life of a "hellion", I suppose.
Most tiles I've seen or heard of do include something like "Movie" and "2001" pretty regularly, so when I first moved here I thought they were a viral ad campaign for a re-make of "2001: A Space Odyssey".

This one was at the start of the crosswalk, nearest Market Street.
TOYNBEE IDEA
MOVIE 2001
RAISE DEAD
PLANET JUPITER
LAY TILE ALONE [AS?] HELLIONS
UP [EN?] [M?] [Y?]
AND GIVE YOU [ASS?]
BEATING[S?]
This one was in the middle of the crosswalk, as you can see from the lines painted over it. I'm sure by this time you can fill in the blanks mostly:
IN [?]
RESURRECT
ON PLANET
And finally, at the end of the crosswalk, nearest City Hall.
TOYNBEE IDEA
MOVIE 2001
RAISE DEAD [?]
PLANET [?]
YOU MUST LAY TILE ALONE AS HELLIONS
AND FED[?]
IN [FILM?]
Found 7/28/06, in crosswalk from Market Street East to City Hall.
[Double-click photos for full view]