Magical meat?

Grilled unicorn detail from a newly discovered
Medieval cookbook at the British Library.

In case you missed it, an article over at American Libraries has an April Fools roundup, with this year's best from libraries around the globe. 

I especially like the Really Advanced Search from google.  Technically not a library, but since it's google, it's only a matter of time, am I right?

Greg Landgraf, the articles author, says libraries and pranks have a strong tradition.  Did your library "celebrate" April Fools?  What is your library's best prank?

And since it's the season for Peeps, this really never gets old.

-Rebecca