I wouldnt be surprised it this has been done before 
but I had an idea for a minior "convergent evolution" 

Minibon - Rock / Fairy A timid pokemon that hides it's soft body with a hard shell, but due to the sweet smell other pokemon often gnaw on it

I couldnt think of how to do the shiny for this one, but it was fun to draw, painting sweets is fun hah, the flavor ideas I had were:
Strawberry 
Milk/Vanilla
Chocolat/Fudge
Mint
Licorice
Caramel