Dipstick tube plug in block (removal)

I am having the opposite problem where i need to find/make a new plug for the car dipstick hole. Can i just make a cone-like brass rod and hammer it in or attempt to drive out the old one and transfer it to the new block?
I'm sure I could find a new plug, on line if not locally. On line could be a box of 4+ and as many days wait so... I would prefer to transfer a plug that I had before me, easy access and all. Voiding that option I might just thread/tap the hole and put a bolt in it ( although I don't like to do what isn't easily undone later if necessary ). Lots of ways to plug a hole.