Any sensible answers ? I realised that the 'story' viewed through the distorted prism of the Daily Mail would be seen as lacking seriousness ;-) but thought that the frequenters of this forum might be able to shed light on the likelihood of which aircraft it might be from. It looks like, to me, to be a tooth from a digger bucket, but they aren't made from aluminium for obvious reasons. Part of a landing gear leg suspension system perhaps ?