I have made a couple pots, not quite hollow forms, and I need to sand the inside. One specifically is a cottonwood Burl, so it is soft and not straight grain so there are some fibers and tear out. I would’ve been fine without having to post this, I made the opening a little too large to obscure the insides and there is a void so you can see through to the inside. Unfortunately, while the opening is a little too large for my taste, I can’t fit my hand inside to sand does anybody have any ideas for how I could sand the inside, one possible idea that I have is to use a flapper wheel on a Dremel and sand the inside while it spins. Does anybody else sand the insides of their vases and if so, how do they do it if they can’t fit their hands inside?