Winterly Gift boxes

Nine colours: black, blue, cyan, green, orange, purple, red, white and yellow.

They are containers, not decoration. Place one down, then right-click it to put items inside. To pick one up with its contents still in it, use Silk Touch — breaking it any other way does not keep the box intact. How much a single box holds is a setting you can change.

Because they take a colour and stack neatly, a row of them under a tree works as storage and decoration at the same time.