The prompt for the rest of July is for things having to do with the Letter G. When you compose your post, it would be great if you could choose G for the label box before clicking on publish. If you click on Show All, next to the labels box, you can select the right label for the prompt you are responding to. (I'd like to keep the labels relevant to the prompts, though, so please don't add new ones.)
G is for Gate
We also recently had gold for inspiration, you could look there to get a start or to see how you might want to go in a completely different direction.