Attempt at making an "educational" video...

The only snippet about the history of this puzzle that I could find on the internet:

"90‘s in the last century, a puzzle toy called "Drop of Cleverness Bauble Spelling Tray" was popular in Japan. The toy is composed of a tray and 12 Baubles. Player's goal is to use these baubles to fill the pan gap acording to different patterns. [...] It is more interesting and fun than the puzzle toy. This game is very easy to play, but it has infinitive varieties. The game is suitable for children at age of three or above, adults and the elderly people. Everyone can have fun in the challenge."