Well, I obviously didn't make the entire thing myself, but I think this still qualifies. A few years ago a friend gave me a little music organ. (I don't know if that is its proper name, but you know what I mean, you crank the little handle and a tune comes out.) The outside surface always bothered me - it was a picture of a shiny purple and green clown - but the tune it plays is As Time Goes By! So my project for today was to cover it in strips of leftover book pages (from all those paper projects I did ages ago) and a nice picture of Humphrey and Ingrid. And of course, some red hearts. I even made a recording for you here. (Handle cranker: Anairam Traws; Technical Consultant: L'Usband)
I also give you this rather more beautiful recording by Stephane Grapelli - on youtube.