The idea to send jokes to service men and women overseas was the brainchild of first grader Angelica Evans.
"We wanted to send the soldiers a joke because we want them to be happy," Angelica said.
"We were watching a commercial on TV, got teary-eyed about the soldiers far from home; she wanted to do something nice for them, so she decided to send a knock-knock joke," Angelica's mom Kim Evans said.
Soon, Angelica's enthusiasm for writing knock-knock jokes spread to the entire school, all 700 students.
"It was really nice to see their enthusiasm, wanting to support our soldiers and give them a laugh," teacher Melissa Dato said.
"I think giving this to them will make them really, really happy and think of good things," first grader Nick Corsi said.
From here, the knock-knock jokes will be handed off to Blue Star Moms who will include them in care packages sent to soldiers overseas.