Have you ever invented anything? OK maybe not actually built anything, but had an idea for something and thought, why doesn’t someone make that happen?

I remember when I was young, I put a cotton reel on a biro and made a pen that my nan could hold, given she had her hand in plaster. The superchunky pen was born.

It’s time to put your ideas in the T21 Dragon’s Den.

You are the judges, too, don’t hold back, be honest....