This is not a new Magical effect but a new approach to a standard trick.
You tell the children that you are not very well, in fact you have a really bad cold. Just as you finish speaking you start to sneeze, put your hand in your pocket to get a handkerchief out and the Children see the dirtiest handkerchief they have ever seen. It shows the Children you have a VERY bad cold. You look embarrassed and take another one out and this is just as bad, so you take another one out and this is also just as bad.
You ask the children if they will help you clean them. Isn't it lucky you have brought with you your NEW Washing Powder. You take out of your magic box a detergent box. The children are the first to tell you that you can't wash hanky's in that but you inform them you can. You promptly start to shove the hanky's into the box and you commence to twist the box about. Eventually you pull out 3 clean hanky's from the box. The children are fast to tell you that they think the dirty hanky's are still in the box. You tell them they are not but they want to see inside. Eventually you open the box up flat, rip it up and toss it into the audience.
Well that is it, a really great kids effect with lots of business and comes with the following.
The 2 sets of 3 hanky's and enough boxes to perform the trick 5 times and all the bits faked up to do this trick very shortly after unpacking it. Bear in mind you don't have to rip the box up just show it empty. More spares can be bought on INVWSp in Magicians Accessories.