So I made a trip to the Dollar Tree and picked up a couple of plates and smaller bowls. The bowls are more like pasta plates or salad plates. They are shallow bowls. I like that it has that bowl shape but it's still flat. I also got several short, clear candle holders.
I glued the candle holders to the two bowls Saturday. I glued them opposite of each other. One has the base at the bottom and the other has the base glued to the bowl. I like both looks. I stuck a pile of heavy books on top of each and I let them dry for a couple of days. Overnight would have been fine but I did the gluing on a Saturday and then didn't get to the project until Monday (today). (You can see in the photo below how I glued them "opposite" of each other.)
I decided not to glue the bowl to the plate because I'm not sure if I want it in the center or off to the side. I'll just set it on until I decide for sure. I have been having it off to the side and I really like it that way. I can place my rings and earrings and small things in the bowl and the larger things (like my keys, mail, glasses, or whatever) on the plate bottom.
I like it a lot. It fills the space back there quite nicely. And I like having two tiers. It gives me more room and I won't clutter the rest of the nightstand too much. lol.
P.S. Someday I'll upgrade that lamp.