Supplement your email requests for donations with a "chance to win" or silent auction. Some people give more when they have a chance to win a prize.
to request goods and services from your favorite stores and vendors. Use the items to make a few baskets and promote your fundraiser with flyers at work and on social media.
It's a win/win/win. Vendors will get a tax credit for the value of their donation, your friends get a chance to win and you just added $$ to your fundraising goal!