There are stands out there that are made for that purpose. They are basically a base that sits on the table behind your machine and has a pin for the spool of thread to rest on and then a rod with a loop to thread the thread through and guide it to your machine. I have one I purchased from my Bernina dealer that is plexiglass and just not heavy enough to stay put when I put the pedal to the metal. I recently purchased a metal one that is much heavier from another Bernina dealer who is a Menninite gentlemen. I couldn't find a manufacturer's name or number on it so it may have been made by a local machinist. It works great. I purchased spools of bobbin thread for my embroidery machines that are as big and heavy as serger thread. The thread stand allows me to use that to fill my bobbins.