I wish my office looked like the new MUSAC (Museo de Arte Contemporaneo de Castilla y Leon. If it did, I would probably skip to work.
Leprechauns everywhere are jumping for joy over this Rainbow In Your Hand flip-book by Masashi Kawamura. This flip-book has 36 pages of an image of the color spectrum against a black background which gives the illusion of a rainbow hovering over the book as the pages are flipped.
If you must have one… and I know you do… go to Utrecht.