I actually saw this recipe on Our Best Bites...excellent blog, by the way, and had to try it out. The chicken came out perfect, and made quite tasty leftovers, too.
Slow Cooker Rotisserie Chicken
1 whole chicken
Salt-based seasoning (such as seasoning salt, etc. I used Emeril's Chicken Rub)
Make 3 balls of aluminum foil and place them in the bottom of your slow cooker. These hold the chicken off the bottom so the hot air can circulate all around the chicken and so it’s not stewing in its own juices.
Rinse chicken, including the cavity, and pat dry with paper towels. Rub salt-based seasoning VERY liberally onto the skin of the chicken. Place chicken breast-up on the foil in the slow cooker, cover, turn heat to low, and cook for 7-8 hours.