Thanks for the feed back and I am glad you like the results- I am delighted.
I didn't use filler as such, I used Modrock, which is plaster impregnated bandage, like the stuff tehy used to make plastercasts out of, if you broke your arm, when I was a kid. I git it cheep from hobbycraft
As far as the foamcard vs pink/blue foam debate goes, I opted for card for a number of reasons-
1 it's easy to get from my local hobbycraft
2 it's not too expensive, as they sell two sheets of A3 size for £5- this hobbit
house used about 1/2 a sheet- £1.25 worth of foamcard
3 It is less messy and hassel than cutting and sanding
4 I have tried using foam before, and found the resulting shape to be a bit
unnatural. Also the slope was too steap to stand figures on- I wanted something
natural looking and random, but still useful for balancing figures on
Using the Modrock was a lot of fun too- all sqwidgy and messy