I finally found that perfect something.
The hole from the valve stem was the same size as the hole in the lamp base, so all it needed was a bolt, a washer, and a nut. A five minute project that was hiding in my garage all along.
Of course I had to add a little bling.
Large and small clothes pins are perfect for holding cards and pictures.
Or how about a vintage button with a magnet glued to the back?
Finally finished! It just might be coming with me to Mes Amis Vintage Antique Show on Saturday unless I can find a perfect spot for it before I pack up.