I tried to find a bit more about them and came across this site about South Australian butterflies which describes some of the Australian mistletoes. From the look of it and the host plant, this could be Fleshy Mistletoe, but then, South Australia is a fair distance, and there might be different varieties endemic to Queensland.
Continuing the Christmas theme and colour scheme, these 'jingle' bell-shaped flowers are from the Illawarra Flame Tree Brachychiton acerifolius, which is native to the east coast of Australia. It is deciduous and usually bears its flowers before the new leaves appear. It is widely planted in Brisbane and in flower at the same time as the similarly coloured poinciana.