Any ideas for cheap beach themed decorations for a dorm room?

I already have bought a pink roxy duvet cover for my room and have a skim board with hibiscus flowers (painted with my name on it). But i just cant think of anything else to do in my room. It is a single bedroom so I don’t have to worry about a roommate. Any ideas on what I can do?

Dollar Tree
Party Store
If you have time you could order from oriental trading web site—–cheap beach decorations on there.