On the Snacks Supplies page, which you can get to by link from any Snack
Page (it's at http://www.exploratorium.edu/snacks/snacksupplies.html),
you will see that Liquid Crystal cards are listed under the hard to find
materials and that they are carried in the Exploratorium Store. Try
contacting the store at: email@example.com or 1-415-561-0393
or fax 1-415-561-0370 or The Exploratorium Store
3601 Lyon St.
San Francisco, CA 94123
You might also check science museum stores in your area if there are any
or toy stores or unusual gift stores.
> Where do you suggest I find the liquid crystal cards?
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