Jokaero are extremely hard to get a hold of; in part because they are so rare, but also because their technology makes it extremely difficult to keep one in any one place. Nonetheless, some Inquisitors have found success in keeping a Jokaero in their retinue as a powerful ally.
In TTS, Jokaero are referred to as "techno-monkeys" and appear in multiple places. Torquemada Coteaz has an army of Jokaero that he deploys from wooden barrels, which he used during the siege of the Imperial Palace. A Jokaero cardinal was spotted in the Ecclesiarchal palace, as well. Another Jokaero is seen in the retinue of Inquisitor Headsmash.