Funny or Odd Highway Signs

Perhaps I'm easily amused, but occasionally the tedium of driving is broken up by unusual or amazing highway signs. 

Here's one from Oxford, Mississippi on the Ole Miss campus.  The speed zones are set there at 18 mph in honor of former Ole Miss and New Orleans Saints quarterback Archie Manning. He wore an 18 on his jersey:

The Beast must reside along this U.S. Highway in Indiana:

Here are two for stoners to gravitate toward:

Speaking of stoners, in Idaho apparently stoners tended to steal milepost 420 repeatedly.  The highway department, in response, came up with this replacement.  I wonder whether the rate of sign-stealing will go down with this one:

There must be a lot of cunning linguists who steal this sign:

Finally, since some states use individual shapes to designate their state highway signs, this can be a source of amusement.  If you have an urge for a quiz, go to this quiz to see how many you can identify.