Halloween Plans/Costumes?

Ca
For some reason I really want to buy my baby a Halloween costume. They're just so adorable! But I don't want to bring my baby trick-or-treating I would feel silly going with no other kids and she has her 6 month shots that day anyway. Anyone doing anything with their baby besides trick-or-treating? I'd love some ideas for an excuse to dress my daughter up! Oh and post pictures of any costumes you bought/are going to buy!