One of the nice Cities of Death models released were the resin Ork Barricades. Six resin barricades (still available) that have a very Orkiness about them.
Orks are adapt at banging together large piles of debris, welding them with burnas and Gretchin for extra stickiness. In dense city-fights, cunning Ork Warbosses use these barricades to funnel enemy troops and prevent their armour from manoeuvring, before their Tankbustas launch a devastating ambush.
These are going to be part of what hopefully will be an Ork city.
This is a nice one that has had Baneblade tracks used within it. Also note the dead Imperial Guardsman.
This one has shells and a jerrycan of fuel (safe place to put it).
I do like these resin models. In my opinion this is the material that should have been used for the Blastscape pack.