The grand prize is a three-night, four-day stay in the Bahamas, which will be announced during THON Weekend.
A portion of all ticket sales from the game will benefit THON.
"I want [Four Diamonds families] to be relieved of the stress and chaos that has engulfed their life. Serving as a THON volunteer makes me feel hopeful."
JaDhoom earned a $3,000 donation to its THON fundraising total and will return to the stage during THON Weekend.
Letters and packages must be postmarked or dropped off in the HUB by Wednesday, February 8.
"Every child should get to experience childhood in its happiest and healthiest form and have the opportunity to chase each one of their goals and ambitions."