She said that her art-making materials "need to have been open to the weather." She thus used mostly found materials: wood, iron, wire, feathers, and yellow and orange retro-reflective road signs; which flash and glow in the light. Some of her other best-known works use faded, once-bright drinks crates; thinly sliced yellow
Schweppes boxes; ragged domestic items such as torn floral
lino and patchy
enamelware; vernacular building materials such as galvanised tin, corrugated iron and
masonite; and fibrous, rosy cable reel ends. These objects represent, rather than accurately depict, elements of her world. "The countryside's discards .... no longer suggest themselves but evoke experiences, particularly of landscape." Knowledgeable and widely read, she was inspired amongst others by the artists
Colin McCahon, Ken Whisson, Dick Watkins and
Robert Rauschenberg, and the
poets
William Wordsworth,
Peter Porter and
Sylvia Plath. She also had a fondness for the pronouncements of
Pablo Picasso. However gradually both colour and text seemed to fade from her work, and in her final years she created meditative, elegiac compositions of white or earth-brown panels. Although working vigorously into her 80s, with occasional help from an assistant, her age at the height of her success precluded the travelling that would have been necessary to build the international audience her work deserved. Although she exhibited occasionally overseas—including the 1982
Venice Biennale (the first Australian woman to do so),
Switzerland and
Sweden as well as throughout Asia (
Japan,
South Korea,
Taiwan amongst others), the major holdings of her work remain in Australia and New Zealand, both of which claim her as their own. Fine examples of Gascoigne's oeuvre can be found in most Antipodean galleries. The
Metropolitan Museum of Art owns one of her smaller pieces. ==Major collections==