ideas for light for street decorations in beach theme

So my village has every 5 years a "party" where every street is decorated in a theme and there are activities, just a fun time. Now this year our street has decided to do beach themed Decorating. I still have a 50w rgb led laying around and think this might be a nice addative to light up some decorations. So I am seeking advice on what to do with it I thought maybe make it a boat far away or the sun going under. I need some ideas if you have something please tell me and lighthouse isn't needed as we have 3 of those already. Thanks in advance for your ideas