Hi Starlight, this is Lauki (Bottle Gourd). It needs a lot of humidity and then it's extremely productive:
This one is only bent because it's growing through the mesh fence...
http://www.ebay.com.au/itm/RARE-Ligh...-/140969066080
http://www.ebay.com.au/itm/RARE-Supe...-/130901345065
This one we also grow. They call it Tauri in India and it's less reliant on hot humid weather and it's really a lovely vegetable. You just grate the thick ridges off with a potato peeler, then dice them up and cook them like the simple Lauki Sabzi
http://www.ebay.com.au/itm/Angled-lu...item20d27bbdfc