Success with haptics using cheap ultrasonic transmitters?

Good but there are "forums" and there's Arduino forum. The experience and knowledge existing here is surely not found in that many forums. Therefore the "demands" are set a bit higher. Using lots of words is not the way to get fast and correct help here.
To get the basic of the project clear words like "checked", "working" are not motivating helpers. We need to build up our knowing of Your setup.