This is quick video sample from the Nikon D90 with a Lensbaby Composer and Xactoed Jack O' Lantern creative aperture attached. Notice how the specular highlights look like carved pumpkin faces when the fire is not in focus? When it is in focus, the little faces disappear--which is a bit confusing at first. Maximizing creative aperture effects with Lensbabies takes some experimentation, whether you're shooting still or videos, but it is a fun way to add some funky effects to your photos!
Anyways, Have a happy Halloween!