I needed to plug the spark plug holes on my new head, but needed something short so I can paint behind the plugs. I broke the ceramic off of some scrap plugs.
Step 1: hold in vise.
Step 2: Tighten vise. Safety glasses recommended.
The holes are now sealed up!
I removed the lifting hook from the side of the head. I won't be using this once it's all painted, I will be lifting it with padded straps from underneath.
It still needs some finish work, but most of the grinding is done.