I didn't see this posted anywhere. If it is, please forgive me for reposting it. Pretty cool effect. Thanks, Lyle.

http://www.gimptalk.com/forum/playing-w ... ml#p366968

Thanks Mahvin; going to post the tut here too since I'm sort of getting tired of GIMPTalk going down. The post below is exactly as I posted it at GIMPTalk:

OK PC; I'll do a quick tut (but without any nuances)

First, grab the scull (http://www.flickr.com/photos/34520999@N ... /pool-gmic).

Dup and then run B/W Sketch on the Top layer





Now Copy the base layer to Top layer and set to Grain Merge and play with Opacity (Not showing result)

Flatten, Dup and run B/W Sketch on the Top layer (same settings; can play if you want, but I didn't here) and blend to taste



Flatten and run PC's Smooth



Dup and Rotate Image right



Run Wind Distortion and rotate left (not showing Wind Distortion settings {because I forgot to save that capture; lol})



Run Good Vibration filter



Set the Top layer to lighten and blend to taste (not show that result) and then run German Flag Smooth Gradient Mapping




Images hosted free thanks to ImageShack (http://www.imageshack.us).