A bit of thinking about spell mechanics in the Dresden world.
Those "Force Rings" Dresden uses store a bit of kinetic energy from swinging his arm, for later use. Who said that it has to be generated by human forces?
Why not stick it to the end of a gun, to both reduce recoil and sound, to charge up a damage boost for pistol whipping?
Sledgehammer?
Drop it next to a live grenade, and hold it down with a heavy spike?

Can you store different forces?
Heat Energy?

Read More