It seems like advertisements – especially car ads – often use the highway sign theme. Most of the time, they're not even close to what an actual sign would look like, but I found a gem from Hyundai in yesterday's newspaper:
http://dl.dropbox.com/u/15727937/Road/hyundai_advertisement.pdf
The destinations according to route numbers are mostly correct. The font is right. The shields are... quite okay; only 132 is completely wrong (but forgivable considering route 132 is a freeway near Montreal).
We already have covered this topic in the following threads:
https://www.aaroads.com/forum/index.php?topic=6852.0 (https://www.aaroads.com/forum/index.php?topic=6852.0)
https://www.aaroads.com/forum/index.php?topic=5911.0 (https://www.aaroads.com/forum/index.php?topic=5911.0)