What kind of shop will you look for your items?
What sort of clothes did you have in mind?
How much will you spend on the accessories?
What will you wear on your feet?
How much have you spent so far?
Will you need paint to get the look right?
Where will you buy your main costume part?
Do you need any help assembling your costume?
How long do you think your costume would last?
How much have you spent altogether?