Crafting terrain not only can be cheap - but tasty as well.
What you need to craft a hut as the one above is:
A cup - this one comes with some holes punched in symmetrically.
A "Quetschie" (I don't know the English term for it) - or rather the lid of it.
Coffee stirrers - mmmmhhh ... coffee ...
White glue
Spraycolours (grey, silver) and felttips, because I wouldn't want to use a brush for a thing as big as that cup. Also I cannot paint straight lines with a brush, so black and yellow felttips it is.
Start by cutting out an entry to the hut. Don't worry about the fuzzy borders, we'll make them disappear.
Cut down a coffee stirrer and glue the parts around the entry. Also, use white glue on the bottom border. See - the fuzzy borders just disappeared.
Spray the "Quetschie" lid silver (inside and outside)
Paint 5 remaining coffee stirrers black and yellow. This is, where the felttips (along with a ruler) come in handy.
Spraypaint the "building" grey. If you want to, this can already be fine.
I, however, took some "granite effect" spray (yes, that's actually a thing!) to add a nice effect.Tadaaaaa :)
Now trim down the black and yellow coffee stirrers and glue them straight down in equal distance to each other. If you don't have any holes as a reference, you may want to start with the one directly opposing the entry. Then, by dividing the area between the entrie's corner and the opposing stirrer into 3 equal parts on to the left and to the right each, you get the places to glue the remaining stirrers.
You will have some leftover stirrers - there currently is no need for them anymore. (But, of course, you are free to find a use for them :) )