Ah shoop, the most fun I ever had with #!/bin/sh. So goes my blog post about this fun hack that adds Object Orientation to shell scripts.
shoop has not had a package in Debian for some time. It's still at http://shoop.sourceforge.net/. The version that I perfer of is in the depths of my git repo. This is not the most current version of shoop ever developed, but it's my favorite one: shoop as it was before it got too crufty and full of itself.
Here's 99 bottles of beer in shoop.