There are carpets, and then there are Spoon's carpets. Via Wetherspoon's Carpets.
Here are the 10 worst. I bet that every time you enter a store you'll be just staring at the floor from now on.
Just be careful not to actually step on them.
This is a prototype that changes patterns as someone walks over.
Designers Stijn van der Vleuten and Marcia Nolte and visual artist Bob Waardenburg make carpets out of just about anything. Here's a huge Persian-style carpet they made from dry pasta. More here.