These consist of shields of arms and other rebuses. Aztec was pictographic and ideographic proto-writing, augmented by phonetic rebuses. The winner of each game was tasked with solving two rebuses within ten seconds. The rebuses were also made shorter and easier. Similarly, although Mary learns to write (in rebuses) she does not wear clothes. They are a subset of rebuses, and are commonly used as abbreviations. At least some of these may have been rebuses. Rebuses were sometimes chosen that were compatible semantically as well as phonetically. A piece by ukiyo-e artist Kunisada was "Actor Puzzles" ("Yakusha hanjimono") that featured rebuses. Some badges are rebuses, making a pun or play-on-words of the owner's name.