Have you dreamt of doing a big illusion but you don't have a room to perform it? Mike Michaels' parlor helicopter illusion might fit the bill.
First, you borrow a ring from an audience member and vanish it.
You say, as a close-up/parlor magician, you are asked from time to time if you have any large illusions. You state that "No, but today my dream might just come true!"
You bring out your miniature theater (18" x 18" x 22") and activate its built-in MP3 sound system. You turn on miniature LED theater lights and open a front curtain. The stage is now visible with a small platform.
...Long story short, you magically make a 28" long RC helicopter appear on the stage, showing much larger than the theater itself.
Attached to the tail of the helicopter is a small velvet bag containing the spectator's ring.