Let's give away ideas

Thought this might a cool idea for a thread. I'm sure like everyone else here, I come up with hundreds of "business ideas" a month.
Truth is - I won't ever touch most of them. However, some of them could be built by other people with better skills, and could be helpful to others in the community.
Let's post ideas of things that we're not pursuing, and maybe someone else could build it. From the top of my head:

• Service that calls someone and breaks up with them for you, or delivers bad news
• Browser extension that alerts you when a price changes on an item you want to buy
• Platform for companies to post their product, and people can try selling it for a % of revenue
• Clothes matching app - what goes with this shirt? what about these pants?
• Business audio books over hip hop beats