Do you know about LEGO’s CUUSOO initiative?
LEGO CUUSOO is a site where you can share LEGO set concepts that you would like the whole world to enjoy and aim for their eventual release as real products. It is so simple that it can be explained in three steps:
1. Have an idea? Create a project, share your product concept, and see what other people think.
2. Get 10,000 supporters. Projects with 10,000 supporters are reviewed three times a year by LEGO for a chance to become an official LEGO product.
3. Receive royalty. If your project passes review and is chosen for production, you will receive 1% of the total net sales of the product. See the guidelines for more details.
At this point, LEGO CUUSOO has a launched 6 projects since the start in 2011. You can check this overview of accepted / rejected projects.