Factory Balls is a bewitchingly challenging Flash game that I found out about on “Technology Rocks. Seriously.” You have to drag the white Christmas ornaments to the appropriate tools that surround the tree to recreate the colors on the sample ornament. Each level becomes increasingly difficult, as you have to learn how to layer the paint colors and use the correct pieces to imitate the design on the ornaments. This is an excellent problem solving/logic game for our students. It would probably be fun to do on an interactive white board. You might also try using it on an iDevice through the Rover app, which allows you to play Flash games on the iOS.
For more fun Christmas-themed sites, I strongly encourage you to visit “Technology Rocks. Seriously.” There is a goldmine of links that will satisfy anyone!