Oooh, that frame would look good as a fancier version of a carnival mirror. Maybe in your "clown doctor's" office? Or, if you could use it as a frame to "walk" through, you could situate it in front of your mylar mirrors and have it be the entrance to a mirror maze? Hmmm.
Balusters....I like the stair scare idea. Or maybe use them as a transitional piece from the "normal portion" of the clinic to the klown portion? Painted different colors and leaning at odd angles (safely secured, of course)? Or you could flip them upside down, put a little padding on the top and say they were mini-clown crutches. LOL. Or secure a small piece of plywood on top and say they're training stilts for the newbie clownz. Peg legs for pirate clowns?
(I am shutting up now.)