Games Workshop made terrain more of an interactive thing in the latest edition of 40k. Well, they’ve got plenty of their own forms to choose from. Also, they’ve now got tanglewire on sale.
From the announcement:
The new Tanglewire pack contains two rolls of coiled wire approximately 6″ in length, though each coil can be stretched to multiply the length of the Tanglewire many times over. It can be used in accordance with the Tanglewire rule, to decorate tank traps and other scenery, or as a piece of battlefield debris terrain on its own. Add this to your tabletop today.