Strange Bauble

After going for an early morning haircut, I stayed in the house waiting for some relations coming over from south lakes to do a  present swap. They were diverted a few times en-route owing to some back roads still being flooded so once again I was down to an emergency blip.
This bauble on the tree is a plain glass  plastic ball with silver glitter but after down loading the photo it appears to have many colours and shapes totally different to how it looks on the tree.