Photographer James Friedman doesn't play golf. At one point, however, he did have an inexplicable collection of golf balls. Naturally he did what any non-golfing photographer would do with such a collection: cut them in half for a photo series called "Interior Design". Considering that most golf balls, stripped of logo, are completely indistinguishable from one other to the untrained eye, the colorful cores discovered in the series are surprising. The golf ball cross sections resemble planetary bodies, some with two or three layers, and others with just a single multicolor filling. Although sporting goods companies might not approve, we're curious to see who manufactured each ball, and some dates would add a welcome context. 

See a few more cross sections and some of Friedman's newer work.