…(A)nti-capitalist protesters who fancy themselves cyberpranksters… drew the ire of Wal-Mart, the world’s largest retailer, with a website that encouraged people to “name their own prices” by offering hundreds of substitute bar codes.

Wal-Mart considered the ploy an incitement to theft and sent a cease-and-desist letter dated April 2 to one of the companies that was hosting the website, Re-code.com.

Re-code.com’s operators responded by disabling the link on their website that allowed users to print sheets with a selection of bar code labels that could be slapped on store items.

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Re-code.com still provides a database of bar codes that can be copied and pasted into printing applications. It suggests, for instance, that users stick a label for Nerf balls over the bar code on a box of rifle ammunition. Wired

Although he denies being among those inciting people to switch the bar code labels, the website’s owner is one of the renowned anti-capitalist pranksters The Yes Men.