Ok, it seems that when a giant hits you with his club, except death you suffer the same effect as if you would use the pushactoraway command on yourself. Would it be possible to somehow make a weapon or staff out of this? Like a blast of magic to send people up in the air or one strike with an arrow or weapon and off they go? It would be a fun addition to midas magic, if anything ^^

It was apparently intended as a joke mod, but...
http://skyrim.nexusmods.com/mods/22827

I also noticed a few different mods that add a spell version of the unrelenting force shout.

That's what I'm talking about! Kudos!