This was a solution to a problem that appeared at our dining table recently.
My visiting old mum, (94 almost) was having difficulty tipping the right amount of milk into her white cup for her cup of tea. (Her vision is not all that, and she is registered as blind.)
I knocked up this small item in black plastic, so she can just about see the level of the milk because of the difference in colours.
Her hands are quite steady, so she can tip the milk into the gadget, then transfer it to the cup, so hey presto, a satisfying cuppa.
The base was going to be thinned down but the additional weight makes it very stable, so I left as is.
Pete