This was an incredibly easy project, but pretty time consuming. One day I'll post a tutorial for the making of the jumpsuit - it was once an enormous t-shirt, the sleeves were cut off and used to make the shorts of the suit and the remaining shirt was fitted into a tank top & then the two parts sewn together :] There's sure to be plenty of fabric left over if you wanted to install pockets or whatever you like.
The skeleton I painted on by hand after the suit was made and it closes up the front of the ribcage with hook & eye ribbon.