This is a steel wire frame with two glass marbles. It was found in an old garage among various stuff. The marbles can turn inside the frame. : r/whatisthisthing
Vintage 30's Era Green & Blue Glass Marble Razor Blade Sharpener Stropping Tool | eBay
Vintage 30's Era Green & Blue Glass Marble Razor Blade Sharpener Stropping Tool | eBay
Metal spring thing with 2 red glass balls. Can be separated, the balls do come out. Little over 3 inches. Looks like a pair of tongs holding the red balls : r/whatisthisthing