Sweet Sixteen Themes

OKAY... My sweet 16 is in 4 months and im clueless. I have a twin so we`re doing it together, she likes blue and i like purple so we decided to go with both colors. Im wearing a white dress with purple flowers and my sister the same but blue. My mom wants butterflies but i don`t know how that theme will all set in place. I want it to be like a court where my close friends get escorted by some guys but i dont know how to tie it all in. And i dont know what they could wear. I need HELP!! PLEASE HELP ME!!! before its to late.
*Britt*