The rubber stamps include different messages, such as: "Money is not free speech," "Not to be used for bribing politicians," "Corporations are not people; amend the Constitution," and "The system isn’t broken, it's fixed.

[3] As Ben Cohen told Wired: "It's a really effective way of breaking through the clutter and interacting with people...I see it as a really cost-effective form of guerrilla marketing.

[2][8] In April 2016, after several years on the road, and an estimated 100,000 bill imprints, the Stamp Mobile made its final tour stop at the American Visionary Art Museum (AVAM) in Baltimore, Maryland.

The day after their brief detention at a big-money protest in DC, Ben & Jerry were on hand to promote the campaign[9] and donate the Stamp Mobile to the museum collection.

[6] In an interview with Pioneer Magazine, Ben Cohen notes "It's a fairly commonly held view that putting marks on dollar bills is not legal, but that's not the case.