Give us an assignment

We are leaving for a trip around the world.
We have a wordpress site for our friends at home to follow us.

We would like the following idea:
Somebody can go to a page on our site, there he can give us an assignment (form7) like; feed the monkeys in malaysia.

On the same page below the input form we write a post of the assignment.

So you would have a page with a form and below the form a bunch of posts.
These post should only show up on this page and not on the home page.

Do-able??

thanks for you input!