I am going to show you how to make a road trip activity tray for your kids to color and play on.
Step 1: Measure and cut
first measure how tall and how wide you want your trays to be. then take a piece of masenite or 1/4" ply and cut 2 pieces to that size. for my saturn vue I cut 13" by 12".
Step 2: Screw on hinges
next screw on 2 small hinges each about an inch from the sides of the wood. make sure that your screws are not too long and that your wood will close all the way and open to 90 degrees.
Step 3: Drill holes and attach string or cord
now you have a fold up / removable activity tray