It sucks when other players pick up either the mjolnir or leviathan axe after I throw it at them and don't call it back in time

You should be able to enchant either weapon with Loyalty and that should keep them from being picked up by other players (enabled/disabled by config)

You could also just add a config stating whether the weapons can be picked up by other players or not even without loyalty.

:D

Oh that's a bug actually, other players shouldn't be allowed to pick up your axe/hammer. Will be fixed.

Oh good, ty :D

Is now fixed for the next patch.