A side table is a really functional piece of furniture, and if it can roll, it’s even better. Make your own portable table from a wooden crate. First, measure the width of the long crate sides and cut two pieces of wood to fit along the sides,which will serve as shelf supports. Then, cut a piece of wood that will be the shelf inside the crate. Stain all the pieces to your desired color. Screw the side pieces to the crate and then flip it on end to install four casters, one at each corner.