Anyone have any idea what this is?

[Spaceman Spiff]

I saw this photo in an online sales post and am wondering what it might be. No reply from the seller and I am an impatient soul! Maybe some kind of medical attachment? All replies are appreciated, thanks in advance!

 

[cgw117 142]

I'd say part of the malfunctioning B-52 bomb bay in "Dr Strangelove."

 

[webestang6412 1]

Seller did not list what it is and that's the only photo of item?