Using paint effects animate and draw your signature. Complete your signature in less than 30 frames. Stylize and colorize it. You can use any texture or effect (glow) or shader you want.
Be sure to animate the writing of your signature by key framing the "Max Clip" parameter in the stroke node in maya.
To add style you can change and animate (key frame) the "Smoothing" parameter as well.
It is important that you render your signature with no background because you will be "digitally" signing each of your assignments from now on by compositing your signature in the bottom right hand corner just like an artist signs his paintings.