The Palindromic Slide Rule makes palindromes--ten thousand of them. To set it up, photocopy the four boards labeled A, B, C and D on the outside back cover. After cutting them out, place the A board on the table, and lay the B board on the A board, positioning it between the two columns of words.
"The Palindromic Slide Rule,"
Word Ways: Vol. 28
, Article 21.
Available at: https://digitalcommons.butler.edu/wordways/vol28/iss3/21