I got the leotard off ebay but it was long-sleeved so I had to change it into a short sleeve.
The ears are made from a headband, sunshine yellow duct tape, electrical tape, bendy wire and stuffing.
The tail is bendy wire, duct tape, electrical tape and brown paint. I attached to to a leather belt that was covered in duct tape and electrical tape.

I have never worn something so revealing so it took quite a while to feel comfortable.