If you have kids, or even a dog, you know how tiring it can be giving them a bath. It can hurt your back, and it hurts your knees kneeling on the tile floor. Instead of buying an expensive cushion that is designed for use when bathing kids (yes they exists, and of course they are pricy!) Hit up the dollar store or your local big box, and grab a foam pad that is meant for gardeners! They are so much cheaper (I bought mine on clearance at Wal Mart for $3), and are meant to get wet since they are used outside for gardeners! Mine is a really dense piece of dark green foam, about 2 inches thick, and 18 inches x 12 inches.
I just love when companies think they come up with a great new innovative idea that parents need, and charge a small fortune for it. Especially when a very similar product already exists and is much cheaper!