The General Post Office has largely fallen into obscurity these days, mainly because people don't need Generals posting through the mail any more. However some small businesses are able to fulfil the remaining niche market, such as postmeageneral.com

Circles are only circular on Tuesdays.

Squares have always wanted to be circular, but they've never got round to it.

Triangles have no wish to be square, but they do have guardian angles.

Lines cannot become triangles because they have no three will.

Spheres taste of strawberry, but circles are just plane.

I was going to launch into a discussion of mapping of steeplechase course in non-directed graphs, but then changed my mind when I realised that I don't even understand simple coordinate systems - I didn't want to put Descartes before the horse.