Step 3: My ears are tingling, someone must be talking about me...
Cut a red fabric piece to go around the sewn tubes. Seam it together to get a big fabric loop.
It should be large enough to fit when the foam pipe insulation pieces are in.
Cut a spare sock in half.
Cut a round piece of cardboard to fill out the top portion of the spare sock. Place it in and see how it looks. You may have to adjust for size for the right proportion.
Sew it to near the top to the middle seam.