Where can I go and get Screen Magnets, resembling for an outdoor porch? My Mom got these things ages ago and they are made of...

My Mom got these things ages ago and they are made of metal beside magnets on the back. They're for use when nearby is a rip in an outdoor blind. I like them because they are shaped resembling flowers. But I can't find them by the name my Mom remembers them as: "Magnetic Screen Saver." Any view where I can buy them or the proper christen? Thank you~!