For my daughter's fifth birthday we had a Royal Purple Passion Party.  The theme centered around the color purple.  Everyone wore purple, and all the decorations were various shades of purple. We had a contest for the person wearing the most purple.  Since these were five year old girls, the royalty theme fit perfectly. We had a purple castle cake, made purple princess hats, and played games like pin the jewel on the crown, royal ring toss, etc.  For lunch we served peanut butter and grape jelly sandwiches, purple grapes, and grape soda. Party favors included candy jewel rings, bracelets, and other purple trinkets. The ideas for this party are endless. Want on instant party theme? Pick a color!