DeformerPro is probably one of the easiest ways to have some fun with your photos and your PC on one of those boring Sunday afternoons.
First of all, bear in mind that this program is mainly intended for people who have little or no knowledge of photo editing at all. Power users may find it then a bit too simple but in any case it works really well for a quick morphing effect.
Simply run it (no installation required) and load a photo. Then start deforming the image with the mouse's right button and see how it's coming out in real time. At the beginning it'll all look weird but soon you'll get the knack of it. The overlaid grid also helps to achieve better results. Just one thing: you really need to be careful because DeformerPro only supports a one-level undo.
Once you like the final image (you can get a better look by temporarily disabling the grid) you'll be able to save it as JPG, BMP or PNG, ready to be published online or shared by email. Just be careful not to hurt other people's feelings!
Though probably too simple for expert image editors, DeformerPro is a great tool to apply warping effects to your photos in no time.