Always attach the stick to the top of the puppet, so that the body hangs down against the screen. (Tip: It is helpful if the screen is tilted slightly away from the puppeteer. This way the puppet rests on the screen giving a sharper shadow. )
How to attach the stick to the puppet
The thing to remember is that the joint between the puppet and the stick should be flexible. In this diagram cellotape is wrapped at an angle up the stick and at the top, just as it is placed on the shadow puppet, the tape is nipped together. This will make a simple flexible joint.
The stick can be a split cane such as those used for gardening or perhaps a barbeque skewer. These are strong and straight. (Tip: Teachers will need to consider H & E issues here, for instance, cut off the points on the barbecue skewers and if the gardening canes have a preservative ensure children do not put them in their mouth.) Dowels and whole canes can also be used but these tend to be bigger, more expensive and less convenient.