I have been working with 2 aussies to now make available the Bally - Ball Outhole Kicker Arms in a original version as well as a stronger version with larger radiis, braces and extra fill with the goal to last a long time. Below is a 3D printed version proving fit and function. The shapeways version is nylon and 100% filled and choice of a few colours.
now available at Shapeways
the original version
https://www.shapeways.com/model/1590885/bally-pinball-ball-outhole-kicker-arm-c-972-3.html?li=my-models&materialId=62
the upgraded version
https://www.shapeways.com/model/1590893/bally-pinball-ball-outhole-kicker-arm-c-972-3-u.html?li=aeTabs
original version
625x465_1590885_2788238_1399626342.jpg
modded / upgraded version
625x465_1590893_2788291_1399629198.jpg