Can she do a bake sale or a garage sale. Ask people to donate the stuff that they don't need or want anymore. Make sure you put that all the proceeds will go to Breast Cancer. Ask companies to give. I know someone who wrote the company names on her shirt or her body if they donated to her.
Trust me it took me SEVERAL months of begging to make my goal. And it is going to be even harder this year because on of companies that gave me $300 dollars has ladies from his office walking so I won't be getting that money. I have to raise $2200.
Best of luck to her.