This topic was brought up before...maybe 6months ago. Yes, a lot of people are doing it. There are some, who are making a nice buck by converting old shoes into bowling shoes. If i remember correctly, some were saying that their is a specific glue that has to be applied on the bowling soles. This "bowling glue" is tougher than cement glue, it has to be, to keep the sole from peeling off. I dont remember the name of this glue. But yes, it`s being done as we speak im sure.
Earl