To make a Christmas tree in Minecraft, first you'll need to gather some supplies. You'll need 3 logs of any type, 24 blocks of any type (preferably matching the tree's color), and a wooden shovel. Once you have those items, you can begin constructing your tree. First, place the 3 logs on the ground in a triangular formation. Next, use the shovel to dig up dirt around the logs, creating the base of the tree. Finally, place the blocks around the logs, creating the trunk and branches of the tree.