No, twist off bottles won't work, if you try to cap them they won't seal. Then you'll probably end up with uncarbed and oxygenated beer lol.
Buy a wing capper / caps from the LHBS if you don't already have em. Bottles can be got from there, or you can reuse bottles from beers that use the same 'craft brew bottles'. I most often go with deschutes or ballast point. My girlfriend likes angry orchard cider, those bottles also work.
On a side note, I have a current dillema where I'll be needing 20+ more bottles soon, and the LHBS where I live sells 24 for $20. The same cost as a case of craft beer from Costco. I have a thing about not buying empty beer bottles, especially for the same cost of actual beer, but at the same time, I'm not a heavy drinker and it'll take me a long time to go through 24 beers myself, especially since the Costco beer which kinda is ok at best (I'm being nice here).
I guess one option too is ask your friends for their empties, especially if they like your beer they'll be more than happy to supply you with bottles. If you're really in a pinch, you can also use clear or green bottles, just make sure they're stored in a completely dark place.