I need a title and theme for my 21st birthday?!

Give it a "Baywatch" theme...beach party ideas...food, activities

Attach a computer generated or hand written tag to a shell or a pair of inexpensive Sunglasses. Use curling ribbon, satin ribbon, or pipe cleaners to attach. OR>>

Send an inexpensive Beach Balls invite, complete with party details written in permanent ink (deflate for mailing).

Have guests dress for the beach…swimsuits, shorts, tank tops, muscle shirts, sandals, cover-ups, and don't forget the sunscreen.

For those who are unprepared for the festivities, have extras like: Sunglasses , Foam Visors,
Stripe Band Beach Hat, Beachcomber Hat, Neon Beachcomber Hat , Assorted Luau Bucket Hat , flip flops....
White Sailor Hats are fun, too.... A colorful Fun At The Beach Hat is also a winner. Music by Beach Boys, Bob Marley or Jimmy Buffet .

Colorful Plastic Shell Plates are great for BBQ & Beach parties, or serve your meal on a Frisbee lined with a paper plate---add a watermelon whale or other carved out watermelon filled with fruit for a centerpiece.

Decorate the backyard with beach props…beach towels, beach umbrellas, surfboards, Beach Balls , volleyball set, flippers and snorkels, pool goggles, Large Pails And Shovels , rafts, driftwood, and the ultimate beach mood setter… Inflatable Palm Trees .
Games>>
Volleyball

Frisbee or wet sponge football

Water balloon toss

Garden-hose limbo

Horseshoes

Backyard Bucket Brawl (a wet version of musical chairs, starting with one tub or large bucket filled with cold water for each guest)

Tug-of-War (with the wading pool in the center) You will need the following items:
Rope - 20' long
Rope - 6' long
Bandanna or some kind of cloth

Divide your guests into two equal teams.

Choose a large grassy or sandy area to play this challenge. Place the 6' rope on the ground in the middle of the chosen area. Have teams line up in single file on either side of the center line, arms length apart. Tie the bandanna or cloth in the center of the 20' rope and place over the center line. Each player grabs the tugging rope and at the signal tries to pull the first member of the other team over the center line.

Have a Contest for: "whitest legs", "best contrast", "cutest summer freckles", "best tan from a bottle", "most likely to land a role on Baywatch", "most sun savvy", "itsy, bitsyest bikini", and "least likely to age prematurely". Be sensitive to the feelings of the recipients, and make sure that everyone wins a prize during the course of the party. Award fun beach related prizes (sunscreen, Chapstick, beach toys & Beach Favors)

Give food fun beach-y names "Seaweed Salad" (for any greens)..."Seashells & Cheese" for mac& cheese, etc.

Make a fun Tequila Sunrise Punch>>
1/2 cup silver or gold tequila
33 ounces citrus-flavored club soda
2 limes, quartered
1 small unpeeled orange, cut into 1-inch chunks
1/2 small unpeeled grapefruit, cut into 1-inch chunks Ice cubes

Pour the tequila and club soda into a pitcher. Add the limes, oranges and grapefruit and set aside for 10 minutes.
Add enough ice to the pitcher so that the punch rises to the top. Serve in chilled glasses with some fruit in each glass.
Yield: 4 to 6 servings
Prep Time: 10 minutes

Ladydi gets my vote
she sure sorted out your party
Ladydi have you ever thought about being a party planner
or even writing a book

isnt there a restaurant in myrtle beach called medieval times? have a medieval theme by going there for your birthday.