"Trofast as Changing Table" found via LemonCadet.
"So when I saw the Trofast system at Ikea, I did some measuring and came up with this idea. We bought the stair-step piece and the single unit. Mr. Lemon cut a piece of plywood 1" larger than the changing table pad. I had some teal fleece in a bin so I cut it to size, wrapped it around the plywood and stapled it to the plywood like I was stretching a canvas. So the staples wouldn't scratch the Trofast pieces, I used double-sided tape to put a layer of felt on top of the staples. Mr. Lemon was concerned about safety so he somehow attached the two Trofast pieces together (leaving enough distance between them so that the plywood would fit nicely)."