I made this box about 15 years ago. It was made for an exhibition which did not quite happen for me, so it has never been on show - and here it is - show cased on my blog!
I was inspired by the mechanics of how some drawers worked in the Royal School of Needlework archive department (which are no more), and pop up books.
Combined - this is what I came up with! Basically - the drawer itself has a rounded edge, so once the tab is pulled, the lid of the drawer lifts, then the pop out flower falls out.