Images by Mattel
If you are looking for some cheap AA articulated bodies, Amazon has Nikki currently on sale for $6.11 and $7.55 depending on the version. There is a cap on the quantity so you can only get 3 in your first order. You'll also have to pay for shipping if you don't have Prime. Prices change randomly at Amazon so don't be surprised if they've gone up by the time you read this.
And nope I don't work for Amazon or Mattel, I just like cheap, freshly packaged dolls.