Steve, the owner of the Windsor Plywood store in Cranbrook, BC, sent in these custom bowties made for a customer live edge project. A bowtie inlay is a type of joint used either to hold two or more wooden boards together or to keep two halves of a board, that have already started to split, from splitting further. Traditionally, these inlays were painstakingly crafted to fit into hand-carved and chiseled recesses. But today, all you need is a plunge router and a simple inlay kit.
More information and an excellent step-by-step guide can be found at this link: http://www.woodsmith.com/files/issues/189/making-bowtie-inlay.pdf or Woodsmith No. 189