So pick up a few tennis balls and introduce them as magic wands. They fit perfectly in their hands and slid over the smartboard beautifully. It also keeps those sticky fingers off your board:)
They will pick up the "magic touch" quickly but my kiddos still love to use the tennis balls. I often will toss the ball out to a student when I am calling on friends to come up and answer questions on the smartboard.
A Koosh ball is a another fun way to have students answer questions. They can toss the ball at the smartboard to answer the question.