O’Connell explores a plethora of materials and processes in her work. She hoards found objects such as discarded agricultural tools and dairy vessels, which may eventually find their way into her sculpture or become an inspiration for a form or texture. She teases the most extraordinary forms out of various materials, from stone and rubber to steel cord, sheet metals, glass and plaster for casting in bronze. O’Connell looks to archaeology, architecture and geometry, in addition to smaller objects and materials, for beginnings to both her large and small works. Recently she has begun to use fibreglass, usually reserved for building yachts and boats, in order to create graceful organic shapes, reminiscent of natural forms and familiar objects. O'Connell has long held an interest in forms that confound the natural and artificial. The refined, yet, organic shapes of imatra stones and concretions— geologic structures often confused with fossils—are often used as the departure point for her sculptures. Imatra stones often develop over centuries when minerals precipitate within rock cavities or build up around a nucleus such as a pebble or shell and evolve into a tacked disc shape. O’Connell is fascinated by such complex natural processes, which exist on a minute scale, and which she magnifies to provide a new perspective on their usually negligible existence. .