In-class Practice - Indexical & Iconic

We are told to use iconic to represent the thing we choose.
So Moritz and me planned to choose pencil as our subject at first, however we found it rather difficult to represent pencil in just some simple lines yet outstanding and appealing. As you can see from the sketch above, the outcome is just an ordinary images where we can see everywhere.

So we decided to do on drinking coffee instead. The full image would be one person sitting there and drinking coffee, so we try to simplify it(the cup image on the right of the man), but it looks ambiguous - is it a symbol to warn people that there is HOT WATER around? After some refinement, we agreed on the man below(with a red tick), it is simple enough yet meaningful.