I mostly listed this because I thought it wwas a bit funny, but it is 59% off, and when you read the description it sounds like great stuff. But on first reading I thought, most people wash their dog to get the mud off them, not to put it on.
Mystic Sea Mud Treat - Dog Shampoo is a newly developed formula that combines the active Dead Sea mud with citronella oil, lavender oil, lemon oil rosemary oil, tea tree oil, and neem oil, all known as active natural flea rejectors. While adding chamomile, calendula oil, argan oil and oblepicha oil to enhance shinny, silky and healthy coat. Using our innovative Mud Treat Shampoo will ease up the exhausting ritual of flea prevention without using any toxins or chemicals! The shampoo foams easily, simply opens knots and makes your dog’s coat soft and easy to brush. The result is a happy and healthy dog! Shipping is $4.90
They also have this treat pack for $9.99 with free shipping.