Fiendish Fabrications are re-issuing their Mushroom Forrest terrain pieces.
From their announcement:
Due to popular demand Fiendish Fabrications have re-issued their popular Mushroom Terrain. These sets stand 11cm (4”) tall and make a great alternative terrain feature for your fantasy or Sci-Fi tables. Use one as an interesting feature or deck you whole table to create a fungi forest for your troops to explore.
There are three different sets in the range. Sets 1 & 2 are set on a 3” x 2” base whilst the larger set 3 stands on a 4” x 3” base.