PLEASE HELP! teen fundraising ideas?

ok so this isnt to earn money for something charitable ive done that before but they didnt always work out as well as i would have hoped lol...but anway me and my cousin need to earn money for a trip.its for a convention so we need to earn money for a hotel room the hotel the convention is at has a deal its about $100.00 a night and then you get special deals at the convention i already have a ticket but she still needs one anyway shes good at art and craft type things im good at singing and acting if that helps and were both really good at cooking we also both really like cooking healthy things and vegetarian things. PLEASE HELP