I bought one of each style of Jujube cups here and use them at home and while hiking and camping. I was going to make my own, but the price is well worth the money here. It is a trend to use cups like this among wilderness survivalist and outdoors people since they are natural, strong and durable, and don't clang and make noise like metal camping dishes. They are just perfect for this sort of thing.
I honestly love this cup. It's super lightweight and quite aesthetic too! Ive been drinking my tea in it every morning