Yay Nora! And are those duplo blocs?!? We have a whole duplo table full of 'em --- we make birds. And castles. And then we smash 'em.

These are the quadruple-sized blocks, which I see marketed as Quattro or, I think more commonly, Mega blocks.  I remember the name duplo from at least late childhood, but I don't remember the names Quattro or Mega back past shopping for Nora in 2003, so maybe they changed their branding recently and the big ones used to be called Duplo, I'm not sure.  But they're the same basic thing, and we build 'em to knock 'em down too.  I think Nora's technical term is to boom it.  It's all about booming the castles (or turning them into furniture for her family of frogs).