Donors are probably the hardest group to steward because you may not be aware of all of the individual donors supporting your program. Your best way of stewarding every donor is making sure all your participants know to steward their network of donors. Spread the message on social media and provide email/text/social media templates to every student. Here’s an example message you can send your participants to send to their donors:

Hello NAME,

Thank you for your donation to support my campaign with PROGRAM NAME this year. It is because of you we were able to raise $XXXXX and support the children at Nationwide Children's Hospital. This wouldn’t have been possible without your help and support.

Sincerely, PROGRAM NAME