It is highly desirable to draw your own designs. Or, you could trace
various parts of a design or image, rework them, and add them
together to make a whole new design. When I need a specific animal
or plant, I google something like "polar bear picture" and see what
turns up. Then I know what they look like from different angles, and
I can draw one the way I want it to look. The use of tracing paper
and a reducing copier is quite helpful. Trace your own design to
rework it, and then copy it down to a workable jewelry size. HTH.
Plus, this method mostly requires time, not money!