Well I have Prismatic, it's a kaleidoscope wallpaper, it has some default options but it will never get old since you can feed it any image on your phone (it says 512x512 and up works best) and it will do it's thing, you can change the amount of facets and all of that, and when you rub the screen it does more kaleidoscoping, also you can set the speed to 0 so it stays still, and you can then still rub the screen to change it up.
I thought Light Grid PRO was the best till I found Prismatic, but they are both awesome, worth the $1 purchase.