When Jack's vocab started to increase the Professor decided that Jack should learn how to say binoculars. I made a few half-hearted attempts to teach him but nothing doing. Then last week while reading a book featuring a binocular toting goat, I asked him to point to the binoculars and he did. That night when I was telling S about it Jack said 'binoculars!'. We were quite impressed (and we had thought him saying aquarium was impressive).
The next day I went to our version of the very useful box and found a cardboard tube and a ribbon and made Jack his own pair. He walked around the house with them hanging around his neck looking through them for animals (or so he told me). The only thing was that sometimes he would say 'Jack's noclars' or Jack's knockers. Oops.