I love little projects and building stuff like this, so I decided what the hell, lets make a blue bowl! This home made blue bowl is made for gold recovery through a vortex in the middle of an angel food cake pan. I modified it somewhat, and even built a completely level bench to mount it on. It drains out into my finishing sluice for a second process. If anything happens to make it out of the bowl, the sluice will catch it. If it even gets past that, the bucket will catch everything else.