Here's a photo of what I now use for a cup. Bought it in a supermarket I think and only just noticed it's made by Nalgene (are they still famous?).
It weighs 2oz / 55g – holds 8oz / 250ml
because it has a scr*w on cap it can be used to store stuff or used to mix something into something.
I like the fact it has no handle to get in the way when packing it away.


