Eeerrrr Jenni!!
My daughter had them a few years ago at nursery........and me

a few days after spending a lot of money at hair dressers on highlights. And they came back....
A few months ago a colleague taught me to knit, haven't tried for a while (just a long scarf for a barbie doll)!! Must ask her re casting orf...my jumbo sausage fingers let me down.
However, fantastic idea knit factor!