Divide prepared decorating icing in half. Use half for decorating the house now, the other half for adding, "snow" around house later (keep covered with a damp cloth).
Fill decorating bag with 1/2 cup icing.
Decorate corners of house and under eaves with line of icing. Attach mini multi-colored candies to house corners.
Outline windows and decorate curtains. Attach candy rounds to sides and top of windows. Cut gum drop candy ring in half and attach for windowsills with dots of icing. Decorate icicles on windowsills.
Outline front door and fill in with zigzags (smooth with finger dipped in cornstarch). Attach candy round for window. Attach mini multi-colored candies on doorframe with dots of icing and add red mini multi-colored candy for doorknob with dots of icing. Cut green gum drop candy ring in half and attach above door for awning. Cut red candy round in half and attach above green gum drop candy ring. Position yellow candy round above cut red candy round over door.
Ice roof smooth and divide in fourths on each side with lines of icing. Decorate zigzag garlands from each division line. Attach mini multi-colored candies in center of zigzag garland loop and at the beginning and ending point of each garland.
Decorate line on roof peak. Cut gum drop jelly rings in half and attach to peak with dots of icing. Decorate icicles on roof peaks and eaves. Attach candy rounds on sides of roof peaks with dots of icing.
Ice snow on base fluffy. Cover walkway path with mini multi-colored candies.