What is special about this? It's the only example I could find.
Is it a miniature meal? An old calculating device?
The secret message is
The model appears to be
DNA - with colors mapping onto nucleic acids
Searching for different possible mappings...
One of the possible mappings, blue->T, yellow->A, green->C, red->G, allows translating the sequence into the word SLIDER. Not only that, it translates the same forward and backward (5' to 3' and vice versa), making it fully palindromic at the protein level, even though the DNA isn't a perfect palindrome.
The other mappings don't have an obvious translation.
Slider can refer to a small hamburger (miniature meal) or a slide rule (old calculating device), matching the extra clues :)
Not sure if I'm missing the actual puzzle, but this seems to be
a model of a double helix
If I'm right it is
We can see it by noting that
the color always match green with red and Blue with yellow. Same as matching aminated acid in DNA