This is found under appliances/misc for $10...this many not the best category, but not sure where else I'd put it.
Sims gain cleaning skills, enthusiasm for nature, fun, a small amount of body temp increase, hygiene, and fitness, decrease in comfort and energy.
A random clothing wad is set to either pink or blue texture.
Your Sims will earn $30 for doing laundry.
I have included Marvin's rock textures, I pulled the textures for this rock, from Marvin's Rock found here:Click Here
Note: If used on vacation lots, you must be sure your Sims are not using this item when you leave your lot, it works fine on vacation lots, as long as you do not have them using it when you close your lot.