Restorer 2000(site info)
A tensioning device for foreskin restoration manufactured by 4restore from medical grade stainless steel. Text description, photos, warranty, pricing and ordering information.
http://www.4restore.com/
Cut / Uncut(site info)
Silicone ring with a surface texture that gently stretches skin at the base of the foreskin, without taping. Supplied in multiple sizes.
http://www.cutuncut.com/