Tracy had the best idea. A secured card will show on your credit report the same way any other CC would so it will help to build your credit. The bank is also protected by you using your cash to secure the card.

My brother is currently trying to fix his credit and he has a card secured by his savings account. His credit limit matches exactly with his savings account balance and he cannot withdraw more than his current card balance from his savings account. It is a win/win for both parties as he cannot overspend on the card and the bank is 100% "insured".