This Gallery (which was free) took me a while to warm up to. The Galley featured "Fluxus," a movement in the 1960s that defied traditional approaches for more "do-it-yourself." Some art was extremely funny, possibly the wittiest art I've ever seen.
A "Box of Smile" by Yoko Ono
George Maciunas, Excreta Fluxorum
In this, multiple feces are labeled, including a white marble.....marked "Unicorn"
"Gift Box for John Cage: Spell Your Name With These Objects" by George Maciunas contains fifteen items, ranging from an egg to plastic boxes of seeds
I really recommend challenging the way you think and going to the Grey Art Gallery to scratch your head. For more information, visit http://www.nyu.edu/greyart/