I've seen some simple animation effects produced in so-called Consumer Budget software ( Magix).
I use Vegas Studio v10, but I'm not aware this Option is available.
I'm aware that "Paint Shop Pro" has a intermediate frame-generator in "Animation Shop" - it's a bit like morphing, only it does rotary motion (think stage-coach wheels).
I looked at "Claymation" but think this is more intended to be used for filming cuddly puppets. As I see it that means I have to construct a stiff-limb puppet, which is beyond my sewing/creative abilities.
So I'm thinking that I should use own-drawn/or/clip-art objects, backgrounds etc., which could be used to create a cartoon.
Another use is to animate a storyboard.
I wonder if folk here can suggest not-too expensive software that might suit?