I also turn the smaller popper bodies using a dremel, but I use a tool that holds the foam while it turns in the dremel, makes it very easy to turn the body and shape it with a nail file. The tool I use I got from a shop called Soggy Bottom, it comes in 2 sizes that will let you turn large ( 1") , or the small one for bodies down to around size 12. This is one I did with some stacked foam sheets: