Kids and Their Artwork

My kids are very creative and love to draw and color but ever since realizing they can create cool things online and then just print their creations, they have stopped drawing as much and I am spending a lot of money on ink cartridges.

Yes, they can still be very creative 'drawing' online but I really would rather they pick up crayons and markers and just draw. I'm going to have to set up some new rules when it comes to the computer.