Not sure, Mushroom. That doesn't ring a bell.
In fairness I think most 'twin tower' and other 9/11 pics I've seen haven't made fun of 9/11 or sought to belittle the human cost. What I think they've usually done is use iconic images related to an horrific event for humorous purposes, which may sometimes be uncomfortable but which I personally think is fair enough. It's something b3ta's always done, and it's part of a wider tradition of British humour.
( ,
Sat 10 Sep 2011, 22:07,
archived)
Get over yourself
Fortunately some Americans have a sense of humour that matches our British Humour
cartoonistsremember911.com/wp-content/gallery/911gallery/bignate37hs.jpg
cartoonistsremember911.com/wp-content/gallery/911gallery/mgg37ts.jpg
cartoonistsremember911.com/wp-content/gallery/911gallery/shoe37ts.jpg
And loads more: cartoonistsremember911.com/
.
( ,
Sun 11 Sep 2011, 21:34,
archived)
cartoonistsremember911.com/wp-content/gallery/911gallery/bignate37hs.jpg
cartoonistsremember911.com/wp-content/gallery/911gallery/mgg37ts.jpg
cartoonistsremember911.com/wp-content/gallery/911gallery/shoe37ts.jpg
And loads more: cartoonistsremember911.com/
.