WinMorph - change your cat into a dog
Sometimes it's hard to believe the power of freeware programs. WinMorph allows a graphic artist to do some really amazing transformations. When it's done right it just looks like magic to me.
Professional quality warping and morphing tools.
Works both as a standalone application and as a plug-in for various video editors to get best of both worlds.
Intuitive shape-based morphing for both ease of use and high degree of freedom.
Advanced keyframing, blending and distortion tools for total control.
Can do dynamic morphing (also called video morphing).
Input file formats include JPEG,BMP,PCX,PNG,PBM,TGA,TIFF.
Output file formats include JPEG,BMP,PNG,TGA,TIFF,AVI,MPEG and SWF (that's right, Flash!).