If you want the same level of quality as the original font you can also use
Inkscape to convert the desired scenebreak character to an svg. This way you get something that's scalable to any resolution and future-proofed.
Down-side is crappy epub renderers don't render SVG, but I'd rather use the features and force the non-compliant reading system guys to step up to the plate and support the spec. Any ADE/Apple/Webkit based renderers support it though.