The only space that stays uncovered is a bit in the middle of the face. This should be just enough room to paint two eyes peeking out. Paint two white ovals and dot with black pupils. The gauze can be tea dyed before hand, but I usually spray him with tea after assembly to give it a more uneven look. I use the fake spider web from the craft store and run a few webs from his body to the base.
Some tiny spiders look great too.
I only make a couple of these every year for a boo-tique. I still have one that is 6 years old. Think he will need a new spider web this year. Count the night by stars, not shadows, count your life by smiles, not tears. And with joy on every birthday, count your age by friends not years.