Step 1: Making the Tree
For ease and speed use a circular saw to cut along your lines (you can do this with a hand saw).
Clamp the pallet securely before cutting to stop the wood binding the blade when cutting.
Step 2: The Stand
I cut the ends at 20 degrees and made a small stack of three pieces.
The stack was assembled layer by layer with screws and then fixed to the tree.
Step 3: Finishing Touches
A star was cut from a plywood scrap, fixed to the top and painted silver (again with hammerite)