Dead Mouse+ Hardware Mouse= Mouse Mouse?

This is creepy....
Someone has designed a computer mouse that uses a [real] dead mouse as the shell for the hardware mouse.....There a few questions floating around right now in my brain:

• Why would you want to use a dead mouse mouse as your mouse?
• Who would use a dead mouse mouse as the mouse?
• Why?

  Hacked travel-size (hardware) mouse + taxidermied (wetware) mouse = Mouse Mouse! Fully functional, and furry!

  Source: instructables.com

If you'd like to make your own taxidermied mouse, you can download the instructions and instructables.com and have a real good time.