Decades ago, I visited the Exploratorium in San Francisco. I made a purchase in their gift shop, and their shopping bag was clear plastic with a radial pattern on each large face; when the bag was emptied, it made a moiré. Much too large to use for a prop, but I cut and taped the bag's two sides to a cheap clear plastic frame. It hung in my bachelor apartment for years, and has been hanging in the stairwell of my house ever since.
(Before you ask, the Exploratorium's gift shop bags haven't had this pattern for many years. Just another relic.)