I can't think of a better way to show your daughter how proud you are of her for getting an A+ on her spelling test then by making it appear you have stabbed it onto the fridge with a ninja knife. The Ninja Knife Magents come with a hole on the end of them so if you like you can attach a key or something to the end of it, you know like a ninja would do... The Ninja Daggers are made out of ABS (Acrylonitrile butadiene styrene) and you can choose between black and silver colors to do thy stabbings.