What makes you so sure that the act of making Christmas lights do that couldn't be done? It's no different than a lazer show at some planetarium or light shows at concerts. Sure it would take some time and effort, but I believe it could be done if one had the know-how.
“The LORD will vindicate me; your love, LORD, endures forever— do not abandon the works of your hands.” (Psalm 138:8) (Read by Max McLean. Provided by The Listener's Audio Bible.)