Buying Rock n Roll clothing

[Shokyokudesuka]

Gracie set me the Rock n Roll theme, and I need some clothing. I already have 2 pieces of the Rock n Roll clothing, but I know I need at least 3 to pass. I'll be willing to pay if that convinces anyone to help me any more. No one will help me for free, I know that, but this is the penultimate test, I don't want to fail it.

I need a hat, a pair of pants/skirt or shoes.