I've never used one, sorry no help, but good luck!

I was just researching cone holders and found here someone made one using a CD holder, and hung a large safety on on the spool thread in, on the machine, and ran the thread through the hole in the safety pin.

I drop the cone into a mug. Tried the safety pin Jan mentioned. It slipped. I have a large clip that I thread through the hole of it and clip it on the lid of my Janome. Stays put until I take it off. Works fine. Then you just thread the machine.

I like the new acryllic one from Superior Threads

My dad made me a couple of them. He took some small blocks of wood, sanded smooth on the edges, drilled a small hole in the center for a dowel, also a small hole on the side for a wire hanger that he took apart and straightened. Then he made a curl in the top. I took a small top for a cattle syringe and cut the end off and stuck it into the curl and set my big spool on the dowel and voila!! Cheap and holds it just fine.

I use the one from Superior Threads. It will work vertically or horizontally. It's the best thread stand I have used.

I like this idea.

I have a cone holder, but got tired of dragging it to class, so I came up with a homemade one. My machine does not like the thread to come from down low, so I needed it to be at the level it would be on the spool pin. I found a large coffee mug, stuck a school ruler in it (clipped that to the side of the mug with a clothespin) and threaded the thread thru the top hole of the ruler and then into the machine. Works GREAT and I just keep it in my bucket with all my class tools. Cone holder has to stay home, poor baby!

I recently purchased one of the large cones and discovered that it fit perfectly over the empty spool already on my machine. No need to use any special holder or not have it in the usual position. I was really surprised that big cone actually fit on my featherweight! Looks kinda funny, but works great.