Don't do swords - strictly an axe and blunt object man :-)
The bigger axehead is abloody good size. If you're wondering why the odd shape.
1) it saves on metal.
2) mounted correctly it creates a hook you can use to grab opponents shield, arm or leg.

Adtually did some sling training with the Uk vikings - largest renactor group in the uk.
I went down to one of their missile training weekends as a sling expert :-)
Good fun !