To Help Kids Build the Coolest Snow Fort on the Block! Having the ultimate snow fort is one way to maximize outdoor fun for both kids and adults in winter. However, aside from the fun of playing in the snow fort, building a snow fort is a fun process. Fun Little Toys snow fort building kit is perfect for providing kids with essential tools they can use to build their very ice castle or snow fort, thanks to the included molds and tools, little ones will surely enjoy building castle, igloos, and walls in winter.