Just had that million pound business idea

Not sure whether this is the right place to post this but...

Im sure we all have these ideas. I have had many in the past. Although they were always complicated and extreme.
Well iv just had another idea, while watching Dragons Den. This time it seems more realistic. Did a quick search on google and i cant find anything like it. Its not a complicated product, non - electrical so should be very cheap to manufacture.
Im still at that excited stage. Lol

How would i go about making a prototype?
Copyrighting/patenting my idea?
Finding a manufacturer?
Etc etc..

Ive never tried to design a new product before so any advice would be much appreciated.

Thanks

PM if you have the drive still