Well, lol, I didn't show mine cause I'd hate to think anyone would want to copy it. I used scraps that I had on hand & purchased nothing extra. In addition I spent less than 20 min on it.
It's embarrassing compared to Rick's. If
you google "bullet lube stick mold" you'll find many better than mine.
I didn't have the correct bit size so I wobble fit mine. I put a small square of wax paper over the hole start the tube in & hammer it home for a seal. I've made 60+ sticks from it so far. Was able to get 16-4" sticks out of the piece of 1" pvc I had on hand.
I'm sure you could do better. It works just well enough to make me want to spend time/money on a better one problem is, it works.