In 6months I will have a 1year old and a 3year old

So my mommy heart is happy and sad all at once.. Our baby girl will be one and our little man will be 3... its crazy.. how time has flown by... their Birthdays are 9 days apart so we will be doing a combo party this year.. I'm thinking of having a Pirate / Princess Party... I want to make a Princess Pony cake and a Pirate ship cake too.. and have a treasure hunt in the back yard. .and maybe a pinata ... maybe a craft that goes with our theme.. maybe build your own crown or decorate a pirate sword.. :) I'll have to search the net to see what cool things I can make ....