Select different shapes using the lasso tool or a mask to apply the filter to that shape. Make stars, moons, spheres, buttons, and more.
Create text as a selection and apply the filter to the text. To get a more 3D effect to the text, use a larger size font. Just make sure that you create a new image that's large enough to hold the large text selection. Copy the selection and paste into a new image to get a nice text effect.
This is an excellent way of creating a text logo using a favorite image. For example, this fractal would make a nice background:
If we create text as a selection and make a few adjustments in the cutout panel, we might come up with the image on the left.