Beautiful Rare Glass Gem Corn — Can a vegetable be considered a work of art? An unusual, and uncommon, strain of corn known as Glass Gem corn is here to make the case. Much like actual glass blowing, each cob of Glass Gem corn is a unique creation. Some kernels pink, some orange, others a brilliant lime green. If we told you it was a beautiful piece of corn rainbow jewelry, you’d probably believe it. In fact, it’s a completely edible ear of corn originating from some special seeds you’ll soon be able to order and plant yourself.