no way to remove festive icons from within menus

[Dan Jacobson <jidanni@jidanni.org>]

$ emacs -q #21.3.1
gives a line of icons atop the screen.
The funny thing is, searching thru them and the menus at the very top
of the screen, one finds no way to turn off the icons.
Therefore a way to turn them off should be amongst the menu items.

So there should be a way to do (tool-bar-mode 0) right in the toolbar
itself.  And a way to bring it back via the menus.  Or just have it
fold up and sit on the edge...