I was so excited!!! I decided to take a detour and hit a thrift store on my way to pick up my son yesterday. I normally don't do this, so I think it was "meant to be". They had a tub of "serger thread" for $.75/cone. I picked up the tub and looked at the label in the cone and it's 3-strand cotton! They aren't 100% full, but there's tons of thread still on them! They are much bigger than cones of serging thread I have. I bought 25 of them and let my mom pick out 4-5 that she wanted. They fit into 2 shopping bags and my total was $20.48!!