I've always used this one -> http://www.tavia.com/free_degree_wheel.html <- just because I remember the website. Spray glue it to some card board like from a 24 pack of refreshment. The best part is you can write directly on it.
I still got mine from a few years ago from that site. Perfect scaled down printout. I mounted mine to an old 45 record and enlarged the adapter hole. Nice and stiff. I use a coat hanger looped around a bolt for the pointer. Just mount firm, then rotate wheel tdc to pointer and don't disturb it again.
