Step 2: The collar and top (the lid)
A. Take the 1 1/8 inches section of 3/4 inch rod and drill a 5/8 inch deep hole in one end.
B. (optional) Mill two 3/8 of an inch long, 1/4 inch wide, grooves on opposite sides of the undrilled end.
C. If you have milled the grooves, then drill a hole 1/4 of an inch from the end from one groove to the other. If you have not, then drill a 1/4 inch hole through the rod 1/4 of an inch from the undrilled end and countersink the holes. This piece will be the top.
These are two of the three parts that make up the lid.