When you make a donation on Daffy, you can include a "donation use" note for the charity specifying how you'd like your donation used (e.g., for a fiscally sponsored organization, a specific group, or a distinct purpose).
Follow these steps:
Find the charity on Daffy and click Donate.
Select the donation amount and visibility type and click Next.
In the Donation Use section, choose an option from the dropdown menu.
If none of the choices apply, then select "Other Specific Use" and write your custom instructions for the charity. Your note is included in the donation details the charity receives along with the funds.