Seeking advice when paying back private investors

[Michael Archard]

Hey BP,

I just completed a very successful flip using private investors to fund the purchase price and some of the rehab. This is the first time using private money (friends and family) so I wanted to reach out to see what others do when paying back their investors. I am planning to do a short write up to summarize the investment (forecast vs actuals) and provide some before and after photos. I want to do more than just cut a check and thank them. 

Any thoughtful/creative ideas are welcomed. Thanks in advance.