I was thinking of a very simple part that works like the board you probably know from a circus or in a game-show: a board with pins on it and a disc is dropped from the top and it lands on pins and either goes left or right, depending on where it falls on the pin. Down below there are gates with prizes and the disc falls in a gate. This is purely random in which gate the disc drops.
Now what if we have this board in the form of a component with two outputs (with more outputs the component would be too big), you would have a small randomizer.