I've made bubble bars in my moon cake press. I have all the supplies and decided I want to just make some bubble scoops - it seems they will be faster which is what I need in my life right now. My question to you who make bubble scoops is: I want them to be the right size for a one bath use. What size scoop should I use? Is the small scoop too small? Is the medium scoop too big? If you could give me a rough idea of the diameter size, I'd really appreciate it - I think I want to package several together somehow and am trying to figure it all out.