Vintage Uranium/vaseline Glass Mushroom Paperweight 3.5 Glows Med Green/yellow Posted January 21, 2025 by admin vintage. This mushroom is one of the best I have seen! There are no chips, cracks or flea bites. Many super tiny air bubbles. I would rate this a solid 9 out of 10. It is about 4 inches wide at the top and about 3.8 inches tall.