Currently, the only shield that can be crafted is the Force-reactive Disc (lvl 60) by Engineers.
With all the recipes and whole professions that have been added, it is difficult to understand why there has not been a single shield among them. After the addition of Jewelcrafting and expanded Survival professions, shields are literally the ONLY item type that cannot be crafted before level 60 on OctoWoW whatsoever.
Doing a Wandering Craftmaster challenge currently dooms you to not use a shield until level 60, which essentially renders the tanking role for shamans, paladins, and (to a degree) warriors unviable or at the very least much less functional.
Please add three or four green or blue shields across the level range to Engineering and/or Blacksmithing (or possibly wooden bucklers to Survival or even some of those Troll-style leather shields to Leatherworking).