Best practice for products that should be ordered together

[t68]

Hi!
Hope I can explain my question so that you understand what I'm after :
We sell jewelry and on the product page for the piece we also want to offer a choice of necklaces to go with it. The stock of these necklaces also should be available to order from on the other product pages for the other pieces.
So what's the best way to achieve this? If I set up necklaces as stockable variants it seems as if they only can be presented and ordered with  the product they belong to.

Can a stockable variant be used with many parent products in some way?

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