Here are a few tips, how you can be sure, that your idea is going to pop out.
-- Aim --
Many ideas don't pop out, because they miss some features.
Grammar and spelling
First of all, I suggest you to check the spelling of your text, and make sure, that it is correct. If you are writing your idea in English, the task can be done in an easy way. Using such an application like http://www.gingersoftware.com/grammarcheck, you can check your sentence structure.
-- Needs --
Why this is important? Well, because nobody likes to read text, that is not good quality.
-- Partners --
Many free tools
Or, I would like to say - your tools. There are hundreds of free and paid tools to make your designs to pop out. For example, to create posters and collages, you can use the web application like https://www.canva.com/, or create texts like these in app http://typeslab.com/
-- Outcome --
Did you see, that this post might look already better just because I used some eye catching illustrations, some basic text formatting? Right?
Go ahead, create your idea and take part in Idea Pitch!