Quoted from tomdrum:Readily available:
http://www.actionpinball.com/parts.php?item=C-972-3
tomdrum marco buys from my shapeways store and so do a few other outlets, go direct if you need the part
https://www.shapeways.com/marketplace?q=swinksreproduction&sort=popularity
Note: I reproduced one and then designed a more stronger one so hopefully you never have a breakage