Here,
here or
here
=D
With most patterns the colours are entirely up to you and what you would like. The amount of threads to use is also up to you, the more threads, the wider the bracelet. The embroidery floss like DMC or Anchor are the idea things to use. =] Once you get the hang of them try different things with them.
I have these hanging from my ceiling everywhere cause they proved to be an amazing distraction.
Most importantly have fun. =]