My FIL has volunteered to build the driveway pillars this fall when they get back. I need to provide the design. I am going to pour footings, then the construction will be concrete block with brick veneer. I will put rebar in the footings and have my FIL set the bottom course of block over the rebar then fill the centers with concrete. For the bricks, should they be attached to the block with anything more than mortar? Maybe those corrugated metal straps at the mortar joint? Also, how to keep the pillars level across the driveway? I will make sure the footings are poured level and level to each other as best I can. I want to include a planter in the pillars. What is the best way to get drainage holes for water? Add PVC pipe? Leave weep holes at the mortar joints of the brick?