Mexican ceramic lamps

These are Mexican ceramic "lamps" from the 50's, I believe. One is missing the light and cord. There are little plastic tubes and marbles in the cutouts to shine while the light is on. Hand painted with a glittery material is spots. The bottom says Mexico. The tallest one is 15" by 7", and the other is an inch shorter. From my husband's collection. Any additional info is welcome:)