After scouring the web and plant nursery sources galore, the plastic pot was as close to my old terracotta pot I could find to make a pair for a balanced plant arrangement on my window nook. Not the same material, not straight sided and not quite the same color, but I was happy to get this close. The trailing plant in it and the matching plant stand help to minimize the differences. I'm pretty pleased.

Pros: The heavy "cast" looking plastic are a close match to the real clay ceramic I wanted.
Cons: The color has a greenish cast not so pronounced in the web picture. Also no "hole or no hole option for drainage. It has one so I had to add a saucer under the pot.