I participated in a reddit secret santa exchange two years ago. I was flat broke, so I took my creativity and poured it into a series of envelopes. I made a collage of things my giftee liked, I took photos of things that were of his interest and made posters of them, I donated a small amount of money to a charity he was currently volunteering for (and sent him a screenshot of the donation receipt), and I wrote and had my band perform a song about him.
His review of my gift was "He took some pictures, played a song, and claims he donated some money. Better luck next year, I guess."