Does anyone know where I can get a few cheap bobbins with large diameter tubes for use with chenilles and yarns? I picked up a few small metal spools, used with sewing machines I think, and have loaded them with various colors that I use most. Problem is none of my bobbins will let the material pass easily.

I have seached various fly shops and websites and can't seem to find what I want. None of the shops have bobbin with thick enough tubes and most websites don't give that demension with their descriptions. I don't need anything fancy and I don't want a ceramic instert. My main reason for trying this meathod was to cut down on waste and to place my wraps with more accuracy. Does anyone else do this? and does anyone have a favorite bobbin for the job? Thanks for the help.