We have covered a bunch of awesome dice here in the past. The Demley Auto-Dice is a classic though. It is a 1920’s mechanical pocket dice that lets you play all kinds of games. It has two wheels in a art deco metal case. You simply have to push the button to spin the wheels. When you stop, you get a random pair of numbers.
This is not something you can buy on sites like Amazon but you may be able to find a working version on eBay or other auction sites for around $150 (depending on the condition).