Shields. Two sizes, which reminds me to post my weapons size chart when I finish the last one.
The tower shield is called The Ghost Hull. I wanted them to look really really solid. The first few designs I did had the bladed edges like most of the weapons but it made them feel flimsy. I ended up going for the more "bashy" look of the mace. One more weapon (maybe two, I really like making tons of work for myself) to go, then on to the vehicles.