.. Stiff collar

What thing looks like a collar if you tilt it upside down? You have to do something else, first.

Make it darker, first.

The lamp dropped something.

But Argus will spot you and your costume is not yet ready.

Maybe you could use some kind of extension to keep out of his sight.

Combine the Mop Handle and the Embellishment to create a Hook. Use the Hook on the lampshade.

Combine the lampshade collar with with the greasy hairdo and the ugly cape to finish the costume.