So what exactly you're looking for ? Ideas ? Why would anyone share an idea which is lucrative from the business point of view ? Unless you are putting up a bounty for the selected idea or some part of shares in the project it doesn't make sense.I have couple of good ideas,shoot me a PM if you want to take it further,provided I will be seeking an equal equity in the project.Oh I can contribute to the development too!
Because there are no 'lucrative ideas' in reality. You have to implement those ideas to actually make money from them!

I wont be putting up a bounty for the selected idea - we both can understand how easily this method fails. I get a shit-ton of ideas. Love one. But say I didnt like a single one. Make it, reap profits and never pay a soul. I prefer to be transparent - I wont pay for the idea.
Also, I will obviously NOT give you equal equity for the idea. If you can contribute development, yes, then we can talk about equity splits!

Just please post your ideas here. Don't post the ones that you think are
really valuable. But the rest, please post!