Bookplates

Somewhere I stumbled across this cool slideshow of bookplates from the Yale Alumni Magazine.  I was thinking - how cool to have personalized bookplates made, I had never thought about it before.  How cool to think that as books wonder through second hand shops and get given to friends, that your bookplate might provide humor or be interesting to other readers. I particularly liked the little poem that came with the one pictured below.

Photo from the Yale Alumni Magazine

What is your take?  In modern times - is it cool or over the top?