Here is a link for Device to Treat Phimosis

About half way down the page you will see things other people have used that they are now marketing. There are also links to external sites that show you how to make your own.

If Phimosis is an issue for you there are all kinds of do it yourself fixes that work. I highly recommend having a fully functional foreskin for a while before you choose to have it removed.

http://www.norm.org/devices.html