Plexiglas slab holder
Some time ago, someone posted a product that would hold an actual slab. Similar to the old Capitol holders (but not made by them) it naturally had a very thick middle layer (black) and outside layers of clear plexiglas. It also had metal screws. It was an extremely well-made product. It was definitely discussed on the forum, and may have been made by a forum member. The person also did custom work, if I remember correctly. Anybody remember?