There is a way to make paper pots without the glue, just byl folding. In Burpees catalog is a wooden dowel-type pot maker devised for this. I came up with my own improvised equipment to do this last year, but like others have said, had a problem with drainage, plants staying too wet.
Just did a trial amount of plants, all died!
There are greenhouses though, that make all their pots of all sizes this way and are very successful....have friend who volunteered working at one. If i find out more, as i'll be seeing her next week, i'll pass along the info.