Well anyone one who wanted to have a guess should have had the time to leave a comment so here is the answer to my first quiz.
The mystery object was the ring pull from a can of Red Bull. I'm not sure if I made it easier or harder to recognise the logo by placing the ring pull on red cardboard.
Scriptor Senex came closest by recognising the Red Bull logo but not the item, so he can half gloat.
L'homme bizarre avec la barbe grise shouldn't feel too bad for not being able to see the bull, I couldn't either until I ripped the ring pull off the can and looked at it from the back so that the bull was facing left instead of right. To me it looks more like a crouching elephant with it's trunk in the air!