These folks came to me after having launched their site entirely on their own a few months earlier. They had reached a point where they wanted to do more and wanted to have a new look, but couldn't keep doing it entirely alone. They worked with a logo designer and then handed everything over to me to improve.
I gave them a makeover from the old theme (blacks, yellows, greys) to the new one (blues, whites, usability).
They were pleased: "Aaron, WordPress guru and founder of Springthistle Design, created a look for the blog that creatively incorporated our new logo and greatly improved the user experience. He held our hands all along the way and made the process feel simple (even when we know it wasn't)."
They've come back to me many times since the launch for improvements, enhancements, and redesigns.
One feature of their site is a custom plugin that pulls in their donor information from the DonorTools website via that API.