Can you declare any ring a purity ring?

So, can you declare ANY ring a purity ring? I'm wanting to order a ring on the Internet & it says PONED on it. When I get it, can it that be my purity ring? Or does it have to be like a $245790876543211356890087654 dollar ring? Also, could I wear the ring around my neck on a chain? 1 more question If I do wear it on my finger, can I take it off for like sports & stuff like that?

no,
I bought mine at a christian store.
and it says purity on it.
im not sure about wearing it.
but im pretty sure you supposed to wear it on your wedding ring finger,
that's where I did.
and I took it off to shower.

You can take it off in sports, as long as you put it back on.

it has to have something to do with purity...
mine said true love waits.
and if youre just getting it because of the jonas brothers, please don't.
trust me, it was a big mistake.
I'm obsessed with jb, & I got one because of them.
trust me, it's a huge mistake, think it over.
do it because YOU want it.
& yes you can take it off for sports.

Im not necasarly getting it because of them. I do actually want one. But ofcourse, JB has inspired me to get one, you know? I just don't know where to find one?

I got mine online.

dont know if im right but, isnt the ring just like, the symbol that your pure? but you are supossed to wear it most of the time though. by the way I were one and a I got for a tenner at a jewelry store and got it engraved with true love waits on it.