like a gift that arrives on random days or at Christmas, Halloween, New Year and others, when the person buys it, the gift arrives and after a few days the gift can be opened and the item is revealed
and the person continues to have the gift in their inventory and can modify the avatar with the gift

There was a Christmas gift rhe BP gave out, it was bits or smth like dat

Maybe gifting players stuff like items that aren't rare???

the item will not be for sale only when it becomes rare, if an item does not become rare that item becomes random or rare because it will be impossible to get it again
And also the item may become rare because it will get old and it will become less common for people to have this item and gift in the future