Maybe you are a Mum needing to mend Barbie after a "haircut". Maybe you are a fastidious collector wanting to make yourcollector doll pristine again. Or maybe you just need to replace Barbie's head with a lizard head. You will need to get Barbie's head off first, and it's not that easy. This post is for you!
Here's the photo you need - it shows what's going on inside the neck attachment. As you can see, we have a round base, then a "T" shaped hook. Barbie's head fits very snugly over these, and to get the head off intact, you will need to ease it over both obstacles.
The trick is to boil Barbie's head! Dunk the whole head into hot water to soften the plastic, and you will find it has just enough give to get it off. You could also try a warm hair dryer, especially if you don't want to spoil Barbie's 'do'. This should result in an intact head and a body. Special note - apparently Ken's head it quite differently attached, and this method won't work. That's gotta be a metaphor.
Once you have Barbie's head off, you can do fun stuff like this!