On Ash Wednesday, set a jar out for each child. Each day they can earn a jellybean of any color. Can't eat them until Easter. On Easter morning, fill the jars to the top with white jellybeans (where they are lacking) to represent the Grace of Christ.
“The Tradition of the Pretzel. Pretzels began in the 6th century at an Italian monastery. A monk was preparing unleavened bread for Lent and twisted the scraps of bread dough to resemble arms in prayer. He named his creation Pretiola, a word meaning little reward, and gave it as a treat to the children who recited their prayers.” - interesting story