3-D glasses are often available at comic book stores (as they sometimes sell 3-d comic books). You can also make a pair - just use red and blue cellophane, and cover your eyes with the appropriate color (left=red, right=blue). You can also order them from "The 3-D Zone" at P.O. Box 741159, Los Angeles, CA 90004 (only $1.00 including postage each). Or, call (213)662-3831.
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