Examples include your standard donation request letter, end-of-year donation letter, and fundraising appeal letter. Can I accept payments through the Donation Form?Donation Drop-Off in Four Simple Steps. Step 1: Check out our list of acceptable donations to see if your item is a good fit. This document provides a sample format for a letter acknowledging an in-kind contribution or donation. Here's a quick donation request form template that you can use to accept donations from people for your charity or organizations. Payment must be in the form of a Check or.