I'm pretty sure this is clay, but it can be done with fondant.
How to make a black cat/kitten from fondant.
Nicholas Lodge gumpaste recipe to make amazing sugar flowers
MINION FIGURINES TUTORIAL - how to make minion figurines for cakes and cupcakes, step by step instructions and guide to make the perfect Despicable Me minion cake design! Tips on how to make an edible minion figurine. www.thecakinggirl.ca