I NEED Credit Card Advice?

I already have 1 credit card w/a $500 limit, through my bank. which is helping me re-establishing my credit now. I got it this past June. I pay way more than the minnimum payment. I have applied for other cards and got turned down due to my low credit score, what other cards can I get besides a prepaid card??? What cards to apply for? My score is really low and have old delinquent accounts on my credit file. I need it for the Holidays. Please Help!