Place butter or margarine in a large mixing bowl. Microwave on high about 1 minute 30 seconds or until melted. Add marshmallows and microwave for 3 minutes, stirring after each minute. Remove from microwave oven and stir in rice cereal. Transfer mixture to the prepared pan. With buttered hands pat mixture evenly into the pan. Chill mixture for 30 minutes or until firm.
For snowmen, cut out cereal mixture with 2- and 3-inch round cookie cutters. Insert a crafts stick or skewer into each snowman. Hold over a bowl of melted vanilla-flavor candy coating; spoon coating over snowman. Add broken pretzels for arms. Decorate with small candies and gumdrops. Place on wire racks until candy coating is set.
For bears, cut out the cereal mixture with a 4-1/2-inch bear-shape cutter. Insert a crafts stick or skewer into each bear. Hold over a bowl of melted chocolate-flavor candy coating; spoon coating over bear. Decorate with small candies and gumdrops. Place on wire racks until candy coating is set. Makes 10 to 12.