Bought the material to make the hat and tail for Nepeta, not really too sure to go about this hat but I'm sure there's got to be a good tutorial somewhere. (Links would be much appriciated, if anyone knows any good ones) I also bought a black t-shirt and some fabric paint for it.
this store when I can and I'd really recommend them because their prices and quality are the best or you can just search on Ebay for one, make sure to include the colour and length of wig you want but that should be obvious. Make sure to pick a good quality one, if it looks very shiny in the picture it's best to avoid it and just use common sense when determining quality, it isn't too hard to tell a bad wig from a good one.
I'd personally recommend a wig over natural hair, it looks best in most cases.