Recently, I bought myself some "buckyballs magnetic building spheres". Then I got out my macro lens and took some abstract photos of a few arrangements. The reflective surfaces of the magnets and the defocused highlights make for some interesting abstract images.

(M)(L)
Wide open, uniform
(M)(L)
Irregular, stopped down
(M)(L)
Any size you like
(M)(L)
Far Side
(M)(L)
Outside
(M)(L)
Bonus: first bottle of homebrew