I laid the comforter cover (open) on the bed and put on top the comforter (super easy because everything is flat and correctly aligned on the bed)
It took me maybe 30 seconds to close all the snaps around the comforter... and that's it! everything is nicely aligned on the bed!!
A close up on the corner. I tried two different strategies to avoid the corner of the comforter to sneak in the space between the snaps: either you put the snaps on the corner closer to each other (as shown on the right) or you put a piece of velcro heat-activated adhesive. I prefer the snaps because velcro makes that section very rigid but if you put short pieces of velcro that may not be a problem (and it is faster than putting snaps on).
Then I saw this very cute pattern of a Amigurumi Coraline doll (pattern here) and I decided to try it (because the author put together a very nice video tutorial and it was pretty easy to follow the different parts). Here is my Curly Coraline :)