Prison officials banned heavy paper and card-stock after Suboxone, a heroin addiction treatment drug, was found under stickers and stamps, allowing inmates to get high. As a result of the settlement--brought after a lawsuit was filed seeking to remedy an inmate being denied a Thanksgiving card from his 3-year-old son-- certain “pen-and-pencil drawings” and photocopies of cards and drawings will be permitted as long as they are not on greeting cards or thick stationary.