Include the donor's name, complete mailing address, donation amount, check number. Try our free donation request letter templates!Download our standard template or check out our example letters for events, auctions, schools, and more. ☐ My donation is enclosed. Learn how to write the best donation request letters to secure support for your nonprofit, including six templates to get started. Looking for an easy way to create fundraising letters? This guide and free templates empower you to effectively communicate needs and inspire support! Use these forms when mailing in checks or money orders. Printable General Donation Form. Include the donor's name, complete mailing address, donation amount, and check number.