Place a piece of glass on your clean work surface. The glass can be from an unused picture frame. If you are working from an image, place the picture under the glass to copy or use as a reference.
Put your paper next to the glass surface. Tape one side down onto the glass, so that it will fold over to make the print when the image is complete.
Apply oil pastels directly to the glass plate. Remember that the image will be reversed when printing, so plan accordingly. Press firmly to create a sharp, highly pigmented design.
Spray your paper with water to dampen evenly. Fold the paper over from the taped side. Use your fingers, a rolling pin or brayer to press and smooth the paper down to capture the monoprint.
Continue to press the paper down with the rolling pin or brayer several times. Start from the center and press out on all sides. Let the print sit for a few minutes, then slowly lift a corner to see your work. Take your time pulling the paper off the glass plate.
When dry, sign the print and add "1 of 1" or "1/1" to signify that it is a monoprint.