>>11408209
Don't take this as a fuck off but you'll probably get more informed answers from the /chastegen/ thread >>11397546

If you just want to try it out without spending money you can make one from a pantyhose, see this set of unattractive pictures on how to make one. https://mega.nz/file/E61AyKwI#N-vkKr8IqC_cdy5CxGU7XgUIk2rsa3KtIXBbkqkFE64
It wasn't for me so, I like my dick flopping around too much so I never went further with it than that.