They are a Mexican Easter Egg.
Mexico or another Hispanic country
Cascarones
a hollowed out chicken egg filled with confetti.......
Cascarones are confetti filled eggs. They are mostly found and used for easter and other celebrations. Children would crack one over each others head to bring good luck.
Cascarones originated in Mexico, specifically in the region of Central Mexico. They are a popular tradition during celebrations such as Easter and Carnival, where hollowed-out eggs are filled with confetti or small toys, sealed, and then cracked over people's heads for good luck.
Jane Tenorio-Coscarelli has written: 'The tortilla quilt' -- subject(s): Fiction, Grandmothers, Hispanic Americans, Quilting 'Confetti Eggs/Cascarones'