Oompas, now discontinued, were candy produced under the Willy Wonka brand name.
The candy produced from 1971 to 1983 was similar to today's Reese's Pieces and peanut butter M&M's (though bigger).
In 1980, they were briefly available in a chocolate and strawberry (instead of peanut butter) variety.
In 2001, Wonka, then a Nestlé subsidiary, revived the brand name for a chewy Skittles-like candy that came in a variety of fruit flavors: Green Apple, Cherry, Lemon, Orange, Grape, and Strawberry.
The UK version had a different, more eccentric flavour variety: jam doughnut, rhubarb and custard, snozzberry (mixed fruit), popcorn, caterpillar (cucumber) and mashed potato.