I have 2 plain magnetic disc type of pin cushions, Even though they are not really cushions, and one traditional tomato pin cushions. I also have 2 of the hanging kind with a small basket on them that I can toss threads and other small waste from my immediate sewing. They line both sides of my sewing machine.
I thought and am still thinking about getting into the pincushion swap here but have a full plate right now sot that has to wait.