Purple and Elegant - 14yrs
Well my party is going to be pretty and elegant not posh just pretty.
Decoration - I'm having fairy light every were because I'm having a late party about 6.30pm-11.30pm, my favourite colour is purple so I'm putting dark and light purple streamers everywhere(you could use your favourite colour).
Food - I'm making little cup cakes with purple icing with little edible pearls on top.
I'm just plugging in my ipod for music and you could just ask your friends to bring there ipods to if they want to listen to a variety of music.
My invitation i made on the computer - they were purple with black cursive writing and cute purple butterflies and I'm having about 12 girls over.
Entertainment, girls are pretty big talkers so at this age all you pretty much have to do is make it cosy and put chairs out so they can all talk and make up there own games. There's always game like the "chocolate game" or Truth or dare.
If you can spend the extra cash make it a surprise and get a limo to take them out and get them to get dressed up and get noticed and let them feel special with their friends.
I hope this can help you with your planning.