Kingdoms of Kalamar Dungeon Master’s Shield, accessory for D&D 3rd edition
“The ultimate DM shield and the essential accessory for any D&D or d20 Dungeon Master. Dozens of tables, charts and all new and beautiful artwork cover this amazing 24-panel screen! Everything a DM has ever imagined and longed for. Every essential d20 table is included, along with a host of other useful information, all at your fingertips. Spend more time playing, and less time searching for rules.”
This is the only GM’s Screen I can think of that includes a table where you can record your players’ preferred pizza toppings.