A short process from someone's original character, the superhero "Rubber Maid."
http://fto-sete.deviantart.com/art/S...aid-1-98809531
http://browse.deviantart.com/art/Shr...aid-2-98810289
Also, this was one of my attempts at collages back in the day: it's not so much pure head shrink as it is uneven shrinking from the top down.
http://www.the-minimizer.com/forum_3...le.php?id=3467
Speaking of rubber, I've had a scenario I've wanted to flesh out into a full commission like a comic or something:
A mother in her mid 40's volunteers for an experimental procedure that infuses the body with a synthetic collagen to reduce wrinkles and restore elasticity to skin. It works...too well: the woman is younger-looking, but has also gained a rubbery, hyper-flexible body (she can bend and stretch limbs and contort herself - not exactly super-hero levels, but far more than a normal person). She goes about her life with her new body, but finds out there are drawbacks, such as when she blow-dries her hair after a hot shower and the heat causes her wet, rubbery head to shrivel like shrink-wrap (if there were a way to fully animate it, it would be awesome to include the sound of squeaky, creaking rubber, like when you rub your hand on a balloon - basically this
http://youtu.be/xlrqB0nj45o?t=14s).