I use those doughnut shaped rubbery things to hold my bobbins. I have one for each of my machines so I don't try to put the wrong bobbins in the machine I'm using at the moment. I don't worry so much about matching the top thread color to the bobbin thread color especially when piecing, you can't see it anyway. DD had different view on that, that is why we have so many bobbins with just a little bit of thread. LOL!!!