Welcome back to the second part of the Czech Hedgehog tutorial. Now it's time to build some bases for your hedgehogs. You know the drill, hit "more" for... more!
For the bases I used 5mm thick foamboard. Cut it at a preferrable length and width. I used 70mm 330mm for mine. The angled cutting tool leaves some scrap material. Use that and glue it on in random places on the foundation. This is to make the ground a bit uneven and more realistic. The foamboard will be pretty elastic, so you might want to add some plasticard underneath to give it more rigidity. YMMV.
Foamboard with extras glued on for variety in height.