Not an Emacs developer here but still want to share my memories.
I played with LEGO. It was unaffordable in India. It was only when someone travelled abroad and returned, we could even hope of getting a LEGO kit as a gift.
The first kit we got had very few pieces and we soon ran out of options. After a many years, we got a fire engine LEGO kit with many pieces. Mixing the 2 kits, our imagination was the limit!
Much later, LEGO partnered with an Indian toy manufacturer and it became more affordable.
Tetris in GNU Emacs always reminds be of LEGO due to the color and shape of falling blocks...