Ink.. when I got my Barbie out of storage.. I found several 'dresses' still in the box that I'd made.. yep, socks w/ the top cut off and arm holes cut out. Or, I'd just get a rectangle of fabric and cut some arm holes out and call it a dress.. all you needed was some yarn or ribbon for a belt. I thought I was really making some clothes!
I think that's why I made some clothing through the years for friend's with little girls.. all little girls should have neat dresses for their Barbie dolls.. AND, a lot of people nowadays either don't know how to sew.. or don't take the time to make little special Barbie outfits for their children.
I'd use fun fur scraps to make fancy jackets.. fake leather for leather skirts and jackets.. I loved playing w/ my Barbie when I was a kid.. I'd wash and iron her clothes.
I recently made some sleeping bags for two sibling's Barbie's that I'll mail to them for Christmas. I used velcro to hold the pillows on so they don't lose them.