Cute list. I like 9. Demonstrate that you're capable of keeping something alive.

See this plant? It’s called a jade plant and it is IMMORTAL.

One of your neighbours also has it growing in their front yard and they probably won’t mind if you snap off a couple of branches as you walk home from the bus stop. Then when you get home, stick the branches in some different glass bottles and display them around the house.

If that fails, a collection of twigs in a wine bottle will totally do the trick.