Disclaimer: Just to be clear, I do not find stretching excercises to be overly amusing (my mother is a yoga instructor). Nor do I find most forms of faith humorous (my Grandfather was a Rabbi). It's just that this site combines the two in a most entertaining manner.

http://www.praisemoves.com/

Go into the sub-links - they are priceless - all of them

Especially:

http://www.praisemoves.com/ChristianAlternative.htm

If you know hebrew, check out cover of the third book in her Store.

(Thanks Amir)