This sounds similar to the corner time punishments I endured while living with my Aunt as a young woman. "Quiet time" was a daily event, meant to maintain good behavior. After rising and dressing each morning, I was to stand silently facing the wall for twenty minutes, as my Aunt believed it beneficial for my attitude to start the day with a humbling routine. During this time, I could not help but reflect on my powerlessness and the humiliations that the day would bring. I believe this was an excellent tool, as over time I thought more often of my failings while facing the wall and resolved there each morning to spend the day very submissive to my Aunt's will.
Corner time was also often used as part of a punishment for an actual transgression. Of course, in this context it was harsher and could go on for hours at a time. I was to stand at attention with my hands on my head and my head bowed, looking at the floor.
Because I was effectively incontinent during this period of time, I always wore a nappy and plastic pants during both quiet time and corner time. If punishment corner time was to go on for a while, my Aunt would put a very thick diaper on me, as I would inevitably wet it several times until it became heavy and sodden within the plastic pants.
I was not made to suck a pacifier or my thumb as part of these disciplines. However, I believe that my Aunt discovered the humiliating aspect of drooling, as others here have. At age 19, she took me to be fitted with a full set of braces and prescribed orthodontic headgear. I was not made to wear the headgear all the time, but my Aunt would order me to put it on seemingly at random, sometimes even when I had been quite well-behaved beforehand. It forced my lips apart so that I could never quite close them, and I would often find a stream of drool running down my chin as I performed chores, studied, or sat in the living room with my Aunt. My feeling the loss of control, both with drooling and having to put the headgear on with no notice or recourse, was exactly what she intended. It certainly cured my vanity and kept me quite submissive.