Yes a standard box of junk and a bonus item for that week. Even maybe spin the wheel to see what the team has to build and rather than a simple 2 points for the winner everyone is score 0-5 with a bonus point for most imaginative use of the bonus item.
it's more how scratch building works, most of us don't think hmm I must make something out of a ping pong bat, high heel.shoe and a collendar, but we do think I need to make a water tower, now what have I got that's water tower shaped.