The Gully is Petzl's ultra-light Ice Axe. 

Lightening the weight whilst improving the usability, the Gully is designed for steep skiing and technical mountaineering. Banana shaped pick with adjustable grip rest make it a capable tool on serious terrain, Petzl's pick-weights can even be added to provide more penetration in ice.

More importantly at merely 280g it doesn't weigh you down if it just sits in your pack unused!