Substitute for a backpacking toothbrush?
This is intended for brushing the teeth of babies and young children not old enough yet to do their own.
The bristles are very soft. It comes packaged with a gel and is made by Orajel.
As you can see, it fits on the end of adult’s finger and you then stick your finger in your mouth and clean all you want.
It weighs only 1 gram.
Maybe you’d like the Sesame street one ;)