Create an google hangouts app that:
1) Let's a user host a live "on air" hangout via a button.
2) Automatically adds a list of userids to the hangout.
More precise use scenario:
User #1 presses button "hangout".
User #1 hosts google live "on air" hangout.
User #2 - #10 are added to the hangout, automatically.
That's it -- just an app to let one user start a hangout, and then automatically add the other users to the hangout.
Budget: $65 max.