Running out of thread on my worker, saved by a handy little gadget.

My worker pair is running out of thread, so are the passives of the same colour so l cannot swap it. I use a quilting clip to hold the new bobbin and the running out bobbin together so they act as one bobbin till it is safe to throw out the old one. The new, full passive will be swapped with the running out worker after a few rows.
Patterns available at
lesleyslace.blogspot.com
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https// lesleyfw