I've already tried the Mother's kit and it's time for a new one. Are there any clay bar kits out there (in the US) that don't feature ridiculously puny bricks of clay?
Mother's/Meguiars include 3 oz clay bricks to rub the entire car maybe once. Plus they stuff unnecessary items into the box like a microfiber washcloth and a small bottle of polish, when all you want is just a fat brick of clay and some lube. Then they try to sell the bundle for ~$20. Wait ... Mother's now offers TWO 3 oz bricks.
There's got to be a dirt cheap source for clay somewhere, like a craft supply retailer. No doubt Mother's/Meguiars would like consumers to think it's "specially-formulated for auto applications" clay worth top dollar. I really hate paying $15+ to clay-bar my car once, so I'm hoping there's something out there more worth the money. Or maybe you can buy the clay separately?