The kitty litter cake below is very popular, judging from the referer logs. As one to capitulate to the will of the people, I now present the following recipes:
Puppy Chow Cat Poop Cookies II - " These showstoppers are great at parties. For added effect, mix in coconut (tapeworms) ramen noodles (roundworms), or peanuts. You can also coat the scoop with melted chocolate for a startling effect."
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.