Here's one I made Earlier - TV Table

Materials: Primer, Spray paint, adhesive numbers, tray table

Method: Make sure your tray table is free of dirt and dust. Lightly sand. Mask off areas that you don't want to paint. Coat with primer. Leave to dry and repeat. When dry attach numbers to table. Grab your colour spray paint and coat. Leave to dry and repeat. When fully dry peel off the numbers carefully and Ta Da moment. You can use any type of stencil I just happened to have a sheet of numbers.