Any preference on materials? For my Morrigan cosplay I attacked a pine tree, but that probably won't work the same. But styrofoam and other foam takes longer to make look good... but it's cheaper than somethings but wouldn't be sturdy without some support like a dowel rod or something... Also craft foam armor? I love craft foam xD
But I think foam or styrofoam would be cheapest... I'm not sure what our Mage Hawke used to make her staff...