I have the container, now I need to fill it. Suggestions?

[Corry]

I've really been wanting to try my hand at terrariums lately. I currently have a little simple moss terrarium and an unfinished fishbowl terrarium that so far only has fittonia in it.

Today I was out shopping and I came across this somewhat large lidded vase (travel mug included in picture for size reference, since my measuring tools seem to have gone out for tea or something) and it was cheap, so I bought it. However, I'm still very much the newb when it comes to terrariums, and I'm not really sure what would work well in it. I'm not definitely settled on an orchid, but I do definitely want to explore the option. What types do well in terrariums and would grow in a manner that would compliment the size and shape of the jar?

Or, do you think with me being a newb with terrariums, would an orchid be too difficult for me at the moment?

If you haven't read my other posts, I've had Phals for a few years, but nothing else so far as far as orchids go.