George W. Hart has brought us a milestone in breakfast-related math feats, the mobius strip bagel. Directions for making your own are on the link. The author says these are superior to regular bagels for non-math-related reasons as well.
It is much more fun to put cream cheese on these bagels than on an ordinary bagel. In additional to the intellectual stimulation, you get more cream cheese, because there is slightly more surface area.
Link Via Popurls