tzitzilli.

See an image that represents tzitzilli in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).

tzitzilli, oyoalli, in icxic caca, coyolj = there are small bells on his legs--pear-shaped [and] round bells (central Mexico, sixteenth century)
Fray Bernardino de Sahagún, Primeros Memoriales, ed. Thelma D. Sullivan, et al. (Norman: University of Oklahoma Press, 1997), 95.

no ic contzinapanque in tilmatli in itoca tzitzilli = also they tied behind him the cloak called a tzitzilli (central Mexico, sixteenth century)
James Lockhart, We People Here: Nahuatl Accounts of the Conquest of Mexico, Repertorium Columbianum v. 1 (Los Angeles: UCLA Center for Medieval and Renaissance Studies, 1993), 72.

rattle, jingles
R. Joe Campbell, Florentine Codex Vocabulary, 1997;
https://aulex.org/nah-en/?idioma=en