Write an excellent thank you letter for donations. Get tips and best practices, plus three inspiring samples and ready to use templates!"Your generous donation has made it possible for us to provide essential services to those in need. We are deeply grateful for your support. Find out our top tips for writing the best thank you letter, check out specific examples, and get many templates you can use and change to fit your donors. Check out these templates from Fundraising Letters for a range of templates based on your nonprofit's size, cause, donor level, or gift type. I want to convey my heartfelt gratitude to all the members of the foundation who work tirelessly to make the world a better place for individuals like me. Dear Family and Friends,. I want to express my sincere thanks for your family's donation. Looking for an easy way to create fundraising letters?