I found this new subgenre of fun poetry at Chris Webb's BI site: MDX Limericks.
Chris' first limerick:
WITH MEMBER [Date].[Day Name].[TODAY]
AS 1 + [Date].[Day Name].[THURSDAY]
SELECT [Average Rate]
ON 0, [Date].[Date]
ON 1 FROM [Direct Sales] WHERE([MAY])
I'm impressed! And a bit scared. ;)