So I began making an extension cord wrap using scrap plywood and dowels. I drilled holes for the dowels in the plywood and used my mallet to punch them in.
So there you have it! 3 wood mallets! I only really need one of them. I'll probably give the other 2 away as gifts. And I'm happy to say that my 2x4 dump has almost been depleted. Time to buy more 2x4s!