Hi I had a toy doll early 90s late 80s and it had a long pony tail but you could make the hair shorter by pulling its arm up and down and then I think you pressed a button for it to grow again can anyone remember this doll and the name, thanks in advance :)

Her name is "Dolly Surprise"! I had one too, and recently donated her to the salvation army. Long, blonde crimped hair that would grow long when you lifted her arm to touch the butterfly in her hair. :-)