Photographs of notes, or portions of notes may not be used in any form of advertising. The regulations permit their use only for educational purposes. This regulation is currently being violated by a number of major TV networks, computer magazine publishers, telephone card manufacturers and others. Watch for a Secret Service crackdown before long on this. Key chains, watch fobs, calculators, and other products carrying paper money designs are subject to confiscation by the Secret Service. This probably also applies to telephone cards.