Every costume varies but I can have costumes cost between the $100 - $300 range. This year I only bought teethe so far and they ran me 60. It all depends on what you want to spend.thinking of purchasing a gorilla costume for Halloween as part of my costume and it costs $65.00. I on the fence on buying it because its a one day thing that I am using it . What are your usual spending amount when you create a costume for Halloween?