I attached a piece of coat hangar wire to my Sea Girt swaging press handle with a hose clamp to kick cores to avoid an extra hand motion (similar to a case kicker). It worked so well I made a permanent modification by drilling & tapping my handle. With the set screw, the "Kicker" can easily be removed or adjusted as needed. Hopefully the pictures are self explanatory.
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Attachment 208385
FWIW....