Okay.. never mind! Found out that there are some made just for sewing machines and that there are the kind that I was thinking of that would work as well for machines...
I know silly question. I am just spoiled I know! I will say that now that I know this I will be picking one up next time I am out because I hate hate hate threading my embroidery machine!! Why did I not think of this before?! It's funny - I accepted that I had to thread the needles of my embroidery machine but after having a sewing machine that has that nice auto threader I could not bear to get another that did not have it lol.
I am excited to wake up and see if my husband will approve of buying the 9" harp machine. That will be nice. My dealership has a demo model that they are selling at a discount. It's a Janome 1600p-db and doesn't have the threader. I will survive. The other models for much more have features that I don't really need but that threader was going to be a make it or break it kind of a deal lol.