you're talking about the OD button on the shifter side closest to the driver? Your best best will be to buy one off ebay. 1992-1997 will work. I've taken it apart a few times and if the whole rubber band thing is a problem, try to relocate the button for the time being, i think it's two wires for the OD button. If you can't find one off ebay, Levoc sells a wood/chrome shifter but you would need to do some wiring and it loosens over time (that's the only 3rd party shifter that can fit on the "dildomatic")
edit: added "shifter" to when i mention the od button.