Yes, no problem. I didn't know about the unique term.
The gummy bear like the one you submitted is simply a gum with the shape of a bear, or - alternatively - something similar to a proper name of a candy-type, and this is the reason why we can't use gummy bear as a key subject.
In the case of the two words, instead, the exceptions we accept are - for example - traffic light, which indicate a particular type of object, different from the meaning of the words we utilize to indicate it.

Thank you for your reply. I hope to see you again in the next editions :)