Messing about on the Internets at the weekend always gets my (creative) juices flowing (this came from a lottery I ran for a couple of spare Snods and referred to putting names in an appropriate hat
The rubble that comes with it goes in to your personal stock of rubble; you can use any of your rubble to power this.
Warning: You must
remember to say "Good day to you, Sir(s)!
" otherwise you lose the rubble anyway and do NOT
get to use the third worker: manners maketh man, after all!
Oh, and WHY the choice of resources for the effect? Well, it is
hat, isn't it?! #speedimpedimentsFTW