Monday Mystery

I thought that last week's close view ...



... was going to be an easy one. In the end only Adrian worked out it was ...



... a shower gel container. Very convenient for hanging within easy reach on the shower rail. Well done Adrian. Thank you to all who had a go.

I think this week's close view ...



may well be difficult. Anyway, prove me wrong by leaving your guess as to what it is by leaving your guess in the comments. They will be revealed, with the answer, next Monday.