Thank you Mags! This was driving me a bit nuts! I knew I had seen this before but couldn't remember. If you can use it to make a simbot on the invention bench then you know that is what the item is.
The 'Build Mystery Invention' interaction should be available on the invention bench when you click on it now Asphodel. You also need life fruit, 100 pieces of scrap, a heart cut pink diamond, and 1 palladium.