VIDEO: Invention Convention in Cinnaminson

Some young inventors showed off their creations in New Jersey today.

This is Cinnaminson Township Public School's 30th Annual Invention Convention.

Students had some pretty amazing ideas, like the "light up ladder" for bunk beds.

There was even a Toothbrush Squirter - which is a toothbrush and toothpaste all in one.

The competition involved students from grades K through 8.