Glass domed. rings, lot of 4, different sizes

One yellow, agate-like appearance ring, size 6.75. One clear ring with cobalt blue "splashes" inside and pale blue back, size 7.75, One clear ring with pale pink "splashes" inside, size 7.75. One clear ring with black and white diagonal stripes inside, size 9.75. Good condition, 3 of rings have extra skinny part at bottom of ring. (see all photos)