You can make your own watch hands with any graphics editor that handles PNG files with transparencies. Photoshop, Paintshop Pro, GIMP(Free) and even Paint3D (free with Win10) all can do this.
You can either download premade hands for free, make any shape/color you want yourself or even use an image (skyscrapper? NASA Rocket? etc).
Just copy that image to your phone and then import it into WatchMaker and add a rotation based on hours, minutes or seconds to it.
Oh and you can also snag hands from free watchfaces. You can either export the watch and move the hands or do the following:
1.) Make a copy of the watch you like.
2.) Delete all elements, besides the hands, that you don't want
3.) Build a new watch around those hands.