My sister and her friend are having a dance club themed birthday party in less then a month, and I got stuck with decorating the cake. But I can't think of anything to do for the cake.

The cake is a full sheet cake, and they want the colors to be hot pink, neon green, and purple. Any ideas would be very helpful.

Maybe trim it into the shape of a juke box and decorate it with those bright colors.

Or make a 2d disco ball and have lines of lights bouncing out from it in the neon colors.

what kind of dancing : Hip Hop, Ballet? How old are they?

you could do a buttercream transfer

http://www.google.com/imgres?imgurl=http://bp0.blogger.com/_Zz7enka1FoA/SCs3NX0SmlI/AAAAAAAAATM/gs52ya2ALfo/s400/PowerofDance.jpg&imgrefurl=http://jimboscoloringpages.blogspot.com/2008/05/dance-coloring-page.html&h=380&w=400&sz=56&tbnid=b_hbngBHGUAsYM:&tbnh=118&tbnw=124&prev=/images%3Fq%3Ddancing%2Bcoloring%2Bpages&hl=en&usg=__sEEptROzAzepOeouzY4E0eTw8Sg=&ei=xS8lS-KrKoTYtgOjq8XgDg&sa=X&oi=image_result&resnum=5&ct=image&ved=0CA8Q9QEwBA

http://farm2.static.flickr.com/1023/1278030056_60e548f286.jpg

http://serenabooth.com/cakes/wp-content/uploads/DSC05102.jpg

just a few...you can do your own colors...you could probably find more by searching google images

hth

sugarshack did a disco cake with fondant silhouettes. Very cute!!