Black and white weekends - Clusters

I couldn't find a more appropriate image for Black and white weekends because this is an image of different bottles of oil paints. I clicked this snap near a glass factory where this was one of the piles of sorted glass. To prove my point, here's one more click of the second pile. It's not a very impressive shot, but I like the organized management at a glass factory too.

I submit this post for Black and White weekends. For more monochromatic shots across the world, click here.