Your toy must look like salt. It must be broken in very small pieces. There are many ways to do that. I placed mine between 2 newspapers and put a heavy book over them. If you come up with another way you can always use it.
Put glue on some parts of the card. You choose where to put it. I'll put some on the hat, the bottoms and the scarf. After that put some of the broken toy over the glued parts and press a little bit to glue the little pieces. Wait to dry well and shake off to remove unglued pieces.