Your going to laugh when you hear this. :lol:
I was working on my sons Scrappy quilt and I was using up my quilting thread so I went to my studio and grabbed one of the big spools and came in and sat there thinking "there has got to be a way"......
Then it hit me shove the standard spool in the hole and make sure it is good and centered so it will unwind right and put it on my machine. It worked like a charm, looks kinda stupid, but works great!!!
Here is a photo of it on my Kenmore that is for sale in the Classifieds.......
Billy