(There's no video for ClarusX2005 yet. Please contribute to MR and add a video now!)
From the Readme First document...
The original Clarus the Dogcow design was created by Susan Kare, but you already knew that!
What's New in This Release
2005 - Complete ground-up rewrite to support OS X Tiger!
* OS X 10.4 or higher
This program DOES NOT SUPPORT EARLIER OS X RELEASES DUE TO MAJOR ARCHITECTURAL CHANGES IN THE OS X PRINTING INTERNALS!
About ClarusX Release 2
ClarusX is allows you to change the page setup dialog icons (aka "boring guy") from this:
to various dogcattle and other goodness:
For a complete list of all available icons, please refer to the "Icon Catalog" file supplied with this archive.
ClarusX2005.dmg (10 MiB / 10.49 MB)
/ DMG image
Please note, this will not work in Mac OS above 10.5 (Leopard) mainly because it's PowerPC only. Roby Sherman (the developer) did attempt an update (ClarusX2014) but I can't find it. Screenshot of the disc image contents is from my modern iMac, hence the "no" overlay on the installer icon.
Emulating this? It should run fine under: QEMU