party planning

i am the mother of 4 so this is not my first rodeo when it comes to party planning, however i realized the other day that this is the last 7 year old birthday that i will plan.  my baby turns 7 at the end of this month and although her first birthday i had the realization that i would never have a 1 year old again, i brushed it aside and didnt think about it again. but for me 7 isnt a baby anymore.  this is when they truly start making some of their independent choices, like soccer vs dance, this friend vs this friend, chocolate vs vanilla, anyway you get my meaning.  the crux of all this rambling is that i feel like this birthday party should be special so i have been giving it a great deal of thought.  gilli would like a sledding party and so we discussed all the ways that we can make that great it will be a bust if we dont get some snow in the next 2 weeks. so we had to have an alternative and her idea was to have her little girl friends come over and we would have a baby doll party.  her friends can bring their favorite dolls and we will fabric paint some baby t shirts and they can have a fashion show and a tea party.  if by chance we get some snow we are thinking a snowman theme for the cake and we will do sledding, and have hot cocoa.  any ideas would be welcome for the tea party cake.