Confetti Snowflake Cake and Cupcake Decorations A sprinkle of these edible snowflakes is sure to bring a touch of glamour to your christmas cake or dessert. These Snowflakes come in a pot containing 4g of sprinkles (enough for a large cake or 12 cupcakes) and measure 3mm to 15mm in size and are clear in colour with gold sparkle shimmer These products are soluble in water.