An Ornament is an event-only item in Survival 303.
The ornament is a glass object the shape of a sphere. This was introduced as apart of the 2012 Christmas celebration along with the candy cane and other objects. It currently does not have any use in any crafting recipe.
As of 2013, a new tool allows the user to place ornaments on the holiday tree. It can not be stored nor retooled. This can only be placed on a holiday tree. The color of the ornament can be changed by pressing Q or E while the tool is equipped.
This tool can also be obtained by clicking on an Ornament (Item) which has not been put on a tree.