Originally Answered: 13th Birthday Party Ideas!?
Some Party Ideas:
Get a bamboo pole, because at a luau, you HAVE to do limbo.
Get a large bowl and make some non-alcoholic sangria. Just pick your favorite fruit juice and your favorite fruits (pineapples, cherries, apples, oranges, so on) and allow them to sit in the juice for at least three hours, if not overnight.
Go to one of those party stores, and you can get umbrella toothpicks. Spear chunks of pineapple, maraschino cherries, etc onto them. Also, if affordable, some of those cute plastic coconuts to serve your punch in, complete with fruit speared on the umbrellas! They look pretty cool.
We had a luau party for a friend of mine. We made the invitations with construction paper. Multi-colored flip flops! Just trace the shape of a flip flop, and then do the top piece of a contrasting color. Decorate with paint pens. Fun project for you guys to work on!
Of course, get colored leis for your party. I wouldn't do gift bags.. Maybe instead, supply everyone with a plain white t-shirt and some colorful markers, and have everyone sign and decorate each other's shirt. A much cooler memento.
Good luck, hope you have a great birthday!