Just for funzies.
CandycoatedTale (otherwise also known as SugarcoatedTale)
an Au where the surface is made of Fruits and Vegetables, and poor little Chara only wants chocolate! So. He (yeah. Chara's a boy in this. Wanna fight about it? No? Good.) decides to descend into the underground where he heard rumors that it's made of candy and sweets.
Flowers and most clothing is made of different colored Marzipan. Like Toriel's dress, Asgore's cape and Alphys' coat. Sans' jacket is a cupcake, Papyrus is donning a rather smart looking jaw breaker armor with arm and leg bones that are Candy Canes. Undyne's armor is made of black Licorice, while her eye patch is a mint. Even the Amalgamates are made of melted marshmallow. Grillby is dressed as a soda jerk with buttons and bow tie made of 'hot tamale' candies and Mettaton is sporting armor made of polished rock candy. Even the river and waterfalls of Waterfall are made of chocolate... and the riverperson's boat is made of Nougat!
Catch: If you're too nice down here... you begin to turn to candy. Which is why Papyrus' arm bones and leg bones are candy canes. If you're TOO nice, you'll completely become candified, which is this universe's version of 'Falling'. When a monster dies, they become powdered sugar, instead of dust.
It's just for fun... this picture will probably be as far as I go with this.