Hobby Lobby Super Cub
Since I don't plan to fly this plane (yet), I just painted the motor vents flat black. HOWEVER, if you plan to equip it with a motor and fly it, cut those out so air can cool the motor. In fact, if I ever decide to fly mine, I'll probably cut an additional vent on the bottom of the cowling and another one somewhere else for the batteries.
sand, sand, sand, sand, zzzzzzzzzzzzzzzzzz....