Linux users are so creative... and cheap. Sometimes their love for free open source software takes hold in other ways. For example, check out this picture of a custom Linux box I found on afrotechmods.com.
Ubuntu Feisty: $0.00. Cardboard box: $0.00. Duct tape: $1.00.
Having the bitchin'est case mod this side of the trailer park: priceless.