various: up to 45 points
If you have completed the required portion of the lab, three extra credit options are available for your enjoyment and further education:
You may attempt any or all of the above; see below for a detailed explanation of each. Note that while these tasks is strictly extra credit, you must be careful not to break any of the required features you have already implemented, as doing so could lead to a loss of points elsewhere in the assignment. Also, the exercises given here assume you have completed the required sections of the lab already. If this is not the case, you should go back and do the required parts before attempting any of the extra credit.
Stop and check:
Have you completed the required sections of the lab? If not, please do those first!