large jump rings?

Hi, I've just made three pendant charms and need them to sit on top of each other on a chain but can't find a jump ring bigger than 10mm so they're not sitting flat.

Any ideas how I can get them to sit nicely or where I can find a bigger jump ring?
Thanks

Is there any reason for not making your own? Wind some wire round a suitable former in a spiral and saw to separate the rings?

I can make you bigger ones :)

I agree with mr bond make em, piece of pi/ cake, exactly as described, any shaped former really, then just cut them off