A bit of art?

My blip colleague rustycrapp has been getting a bit arty recently (I think he even tagged something for Abstract Thursday) so just once, I’m going to throw one in even though it’s only Tuesday.
Any ideas before I reveal what it is?
I was at the Ag supply store this morning for some horse pellets and noticed piles of these. They come in lengths of 5 or 6m and 3 different diameters. They can be cut with a chainsaw or angle grinder and made of 100% recycled plastic, mainly milk bottles.

They are drainage or stormwater pipes, much cheaper then the equivalent concrete variety and just as tough. I’ll put another shot in as an extra.