this is a pretty great talk by noah veltman on shape interpolation https://www.youtube.com/watch?v=PLc1y-gim_0
here's the bibliography for the talk which has like a dozen things that are extremely helpful to me at the moment
and here's the youtube video he mentions which consists of three solid minutes of morphing orangutans set to sixpence none the richer's classic "kiss me" https://www.youtube.com/watch?v=cFypzyB7nQc and it is indeed incredible