Entry is free.
What are these objects?
Post your answer in the comments. Only the precisely correct answer wins. The Winner, if there is one, will be announced as soon as the correct answer is posted. Otherwise I’ll let the cat out of the bag in three days or so.
The prize is one of my original works of Art, valued (by me) at a Huge Amount. The Undisclosed Sum we hear so much about. (Terms and Conditions apply*)
Here they are again, from another angle.
*but I’m not telling you what the terms and conditions are.