No! There are no official League of Legends Nunu and Willumps Figures. Even though Nunu and Willumps are among the most unique and liked champion pairs in the game, The snowball rolling yeti and his human friend don't have a figure.  However, if you really want one, you can look into the fan-made merch options, where there are many unique figures and figurines from the game. For the Nunu and Willumps figure, I recommend this custom Nunu and Willumps figure from custom Funko Pop! Etsy seller, PatyPetit. With this one, you can request a customized character riding Nunu. Besides that, you can also go for this cheaper 3D Printed League of Legends Nunu Figure from JFreefs3DPrinting over at Etsy.