look up Boccia titanium jewellery - they do really nice stuff and it can't tarnish and I don't think it's possible to break the stuff......
Ohhhhhhh, this is UNBREAKABLE my dear. If you can throw GG on the wall now and damage the wall, you could let it from an aeroplane then and it could damage the road
When I get the new GG it will probably survive reentry from orbit or being sent to Mars! You would have trouble getting it back from there though 
