Although capacity is low, measuring cups can be used to hold ANY liquid. It can be used for measuring out just as much of whatever liquid it is that you need;
Have a bucket of Rennet holding 3.0L and three separate curding tubs you need to fill?
Just measure out 1.0L individually (currently you cannot with a kuksa)
Need to pull exactly .50L of quicksilver from a glass pane frame?
Use the 0.25ml cup twice to fill a separate bucket
There are definitely more uses, I constantly find myself wanting to dole out a specific measurement of something and not being able to, or to split the contents of a specific container among multiple containers.
