Plastic Wash Bottles
Einen Miura shows a glass variety of dropper bottle, which are very
expensive lab equipment. The plastic ones with bent nozzle tips are
generally called "plastic wash bottles". They can be found at
chemistry suppliers and also some scientific educational supply stores
for school children.
There are different kinds available, but usually they are made of
better quality plastic, such as nalgene or polypropylene, and so are
more expensive, but last longer. Also the shape of the bottle is
generally referred to as a "Boston Round." I've seen them listed all
over the web, but also on eBay. Maybe you can find a supplier down
under? Let us know.
Personally, I like to use small hair dye bottles from beauty suppliers
that have a finer tip. Sometimes I shove a pin into the end to keep
it from dribble too much. Low tech, but cheap, and usually works.