Step 1: Gather your wood
Step 2: Tools
2 long nails (mine are 2.5 inches long)
drill with a bit thinner than the nails you're using
7/8 inch cup hooks ($.97 for an 8 pack at Walmart!)
Step 3: Sand & trace
Decide which side of the base will be sitting on the surface, then place the vertical part on top of the base and use a pencil to trace the base of the vertical part. Inside the circle, mark two points for holes as evenly spaced as possible.
Step 4: Drill, drill, drill...
Use the drill and small bit to make holes through the base where you've marked with a pencil. Once you've done that, you can place the nails and hammer them into the holes you've made, but not all the way, just till the tips are visible on the other side.
Now, place the vertical part on top of the base. Flip the two parts over and make a few taps with the hammer so the nails will leave an impression on the base of the vertical part. Now that you know exactly where to drill, you can make the two corresponding holes in the vertical part.