you can make tanks out of card you can also make warhammer scenery.
there are more tips here about saving money.
The cheapest way to play warhammer is to cut out paper in the base sizes and write on what it is. This method Is great for testing a new army.
Oh no I have lost a model!!! Dont worry just stick a few bitz on a base and paint it, no one will mind even if they do they are probobly not worth playing with anyway.
