Just about everything here could have been tossed without being missed. Mostly leftovers outside of the few trees. Even the brown boulder is a re-purposed mud wasp nest. The roof is a damp soft wood sheet with only edges cut via strong,tight, sharp scissors and scores along the length between ends (that faded/swelled over time; hard to see here) There is a bulb inside but "offscreen". Off or on; light and reflections make photos of this a challenge. 
The tunnel is the old door screen after replacement covered in anything old in the closet that would harden; wood fillers, spackles, joint compounds, powdered & pastes. It's heavy and heavy duty 
