For smaller kids...

I have made these decorations for my audiologist to give to the smaller children who come to the hospital to get hearing aids. I made many pairs. They are very easy to make. I am sorry I have not taken pictures to make a proper tutorial. But this is how you make them:

You need shoe charms and also plastic tubing. My mum bought the tubing on the internet. The diameter was 4mm.

Then a grown up needs to remove the back (the bit that goes into the shoe) with scissors or a knife.

Then you cut the tubing into small segments and stick the charms using strong glue (but not super glue or your fingers will stick as well).