"Wondering what I should do with the cam halves?"
They need to be incorporated in an Objet d'Art....
I lost an oil seal, and melted down a set of MerCruiser upper drive gears three-and-something decades ago... I saved the gears, as they were quite literally stripped smooth. One day I was cleaning up my shop, and found them, I pushed the bearings off, put them together (in what WOULD have been their mating position) and hit it with a little electrified MIG wire. I still have 'em somewhere, should find a spot in my workshop wall and hang them... or make a lamp out of 'em or something...