I only checked two pages to see if this is already a topic. If this is a duplicate, I apologize--but I do love these poems.
http://grantmcl.tripod.com/burmashave.html
A listing of Burma-Shave signs--a little over half way down the page. There is a jukebox in the upper left corner. I had it playing Puttin' On The Ritz, but you can turn it off if you don't want music.
http://burma-shave.org/jingles/
Original poems of Burma-Shave signs. They are by year, you have to click on a year and a name before you see the actual sign. Slow, but thorough.