This holiday season, toy makers have turned Apple Inc.’s pricey tablet and smartphone into playthings for kids, the Associated Press reports. They figure in this weak economy, parents will be willing to splurge on toys for their children that utilize devices they already have—or want—themselves. Tiffany Fessler of Gainsville, Ga., certainly was willing to do that even though when she initially bought her $829 iPad she never imagined she’d be sharing it with her 20-month-old son. But whenever she sat down to check emails on the iPad, he’d climb into her lap wanting to use it. So, Fessler decided to get him the $29.99 Crayola iMarker, which transforms the iPad into a digital coloring book using a Crayola’s free ColorStudio HD application that parents can download. Kids can draw and color using the iMarker, which has a soft tip so it doesn’t scratch the tablet’s glass screen…