Is there anything I can do about my old office chair at work?

When I was originally hired I was given the owner's old chair. The cushion was nearly worn out but was ok with a pillow on top. A few months later my boss told me to take the pillow home and leave it there. The cushioning of this chair is now completely broken down. When I sit in this chair I can feel the metal frame underneath. ...and I have to get up alot because my legs keep going to sleep. I told my boss about it but she said there was nothing that can be done unless the chair actually breaks. Until that happens she said there will be no replacement chairs. She also said I could not bring a new cushion for the chair nor could I purchase a new chair out of my own pocket to use at the office.

This is a very small company owned by my boss' husband. He makes the final decision on all purchases for the company.

Is there anything I can do that won't raise my boss' eyebrows?