Controlling the shape of metal
Molten or solid at the end?  It can be shaped in an induction field (liquid)  or dimagnetically levitated (liquid to solid).  Magnetoforming, hydroforming.  Spin molten into into an oblate ellipsoid (solid).

http://www.capturedlightning.com/frames/shrinkergallery.html 
Z-pinch and such.

Munroe effect for jets and planes (angle charges), and self-forging munitions.