If your dad owns an iPad tablet, consider the Hoverbar for iPad ($99.99). As its name suggests, the Hoverbar is a stand with a versatile arm that can be attached to any ledge up to one inch thick. It can be used as a floating display beside your monitor in the study, or on the kitchen counter where it's kept away from any spills or splatters.
Three included "Fit Clips" allows the Hoverbar to work with any current iPad tablets, and the metallic arm is strong yet surprisingly flexible. Finally, the Hoverbar for iPad includes a handy kickstand that snaps onto the iPad clip for use as a standalone tabletop display.
[ How-to: Put Dad's Tablet to Work with a Desk-mount Arm ]