yeah, you can use your thumb or palm to cover the hole. I just smoked half of the first bowl and feel a nice buzz. Im going to finish it off in just a bit but I think I might just save the second bowl for tomorrow.

I dunno about how much a good one runs, mine was like 16$ at the local gas station. I never owned one before, but am happy with getting it. Sorta reminds me of those old pot flicks where theres a J in a cardboard tube. I think I might want to try that when I can smoke again.