"When I went on to the programme I was full of confidence that I was going to get the investment I needed.
"But they ripped me to shreds - I was absolutely gutted. They were rude and obnoxious and just focused on the strap, which was actually something that was quite easily fixed.
"I was terrified that by appearing on the programme I may have ruined my company before it had even started. But afterwards we had loads of hits on the website from people who said they thought it was a brilliant idea.
"Now I am absolutely delighted to have proved the Dragons wrong. It just goes to show you should never give up."
Dragons' Den reject celebrates soaring sales of 'worthless' invention