1 idea: Lining of thread catcher using laminated fabric/thread empties easily
You are on a roll! I love that you custom make them with fabrics suiting the person using them.
One idea for you...I purchased a thread catcher at a quilt show and the inside was made with laminated fabric or fabric like the plastic picnic table cloths are made from...I think it is also called oil cloth. Anyway, the good thing about the inside fabric being coated is no threads stuck to the lining...and dumped out easily.