Current Producer
Retroworks, a small business in Phoenix, Arizona, currently makes several versions of secret decoder rings. They offer a medallion style Caesar cipher, as well as spinner versions of substitution ciphers that can be worn on the finger. http://www.shopretroworks.com
Read more about this topic: Secret Decoder Ring
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“If the current is right, one can drift to success.”
—Mason Cooley (b. 1927)