We have a collection of crystals that are not exactly following any particular theme, but are more what we like, at the time we see it.
For example our Swarovski fabulous creatures trilogy will never be complete as we didn’t like the unicorn and so didn’t buy it.
There are pieces that we do like though so we buy those.
We also collect paperweights from various manufacturers some valuable and some not. It doesn’t matter as long as we like them.