Mitch finds Plinko on Wikipedia, Big fave with Honest Abe

"Bagatelle (from the Château de Bagatelle) is an indoor table game related to billiards, the object of which is to get a number of balls (set at nine in the nineteenth century) past pins (which act as obstacles) into holes. It probably developed from the table made with raised sides for trou madame, which was also played with ivory balls (Gloag 1969 illustrates a London design that was current in 1782) and continued popular into the later nineteenth century. Bagatelle is a precursor of the pinball machine (which is also descended from pachinko), and laterally related to miniature golf.

The game bagatelle evolved from efforts to bring outdoor games, such as croquet and shuffleboard, inside and atop tables. History records the existence of table-based games back to the 15th Century, and a 17th-century table is preserved in the Great Hall at Hatfield House. While some games took the wickets croquet and turned them into the side-rail pockets of modern pocket billiards, some tables became smaller and had the holes placed in strategic areas in the middle of the table.

In France, during the reign of King Louis XIV, someone took a billiard table and narrowed it, placing the pins at one end of the table while making the player shoot balls with a stick or cue from the other end. Pins took too long to reset when knocked down, so the pins eventually became fixed to the table and holes took the place of targets. Players could ricochet the ball off the pins to achieve the harder, higher-scoring holes...."