Are you looking to buy this as a or trying to implement a game mechanic in your own project?

: Use OverlapBox or OverlapSphere components in Unity to detect when an ingot and coins are present in the "buy" zone.

During cultural events like the Lunar New Year, small decorative ingots (symbolizing wealth and unity) are often sold in local markets as souvenirs or "trinkets". These can typically be found in specialty gift shops or seasonal markets.