NEW YORKA magical New York art gallery has the power to turn dull, everyday items into brilliant works of art, sources reported Monday. 'Seth Clayton's devastating Untitled No. 7 captures the despair of urban ennui in a way that's post-ironic yet somehow pre-pomo,' said David E. Sherry, owner of the David E. Sherry Gallery, while admiring a rusty bucket and tattered boot lying on the gallery floor. 'Its eloquence is truly heartbreaking.' 