Ask HN: How can I create something creative/artsy from Facetime screenshots

Me and my Fiance FaceTime (on iPhone) almost everyday and I screenshot her a lot. Want to make something nice for her. Wondering if anyone has ideas or knows of services that automatically generates awesome artwork from a lot of similar images. The image should definitely have metadata/timestamp for a timeline type of thing.

I could do a simple flipbook but come on we ain't playin checkers out here...I wanna play chess.

Also if someone wants to work on this idea I'm down

Post-also if anyone wants to SEO optimize for the keywords "collage or artwork from facetime photos" go right ahead.