I have just ordered my caterpillars from CCPRN. Its going to be the first time since I was a kid that I have done this. I can't wait.
For those of you who are not members of CCPRN you can get caterpillars, tad-poles, ladybugs and more to watch grow form these websites:
http://http://monsieurpapillon.com/e...terpillars.php
and
http://http://www.live-tadpoles.com/