Can you turn ideas into reality?

Whenever you feel that if this could be done with the help of a mechanical equipment, you are thinking of something which will add to efficiency in this world. 

• Something which may exist, but you are not aware of the same.
• Something exists which you know, but it is missing some important features.
• Something which does not exist, but you need it badly.
• Something which does not exist, but can give you a lot of comfort.