Cut a couple of Velcro strips longer than the base and fold the ends up so that they stick to the sides of the pedal. I do this with all my pedals. To avoid sticking onto the serial number plate (big goof) just put a bit of thick cardboard between it and the Velcro. When you rip the pedal off the board you can press the Velcro ends with your fingers which keeps it in place that extra bit.
