LOL, my DD was the same way. Although, I don't remember if I tried to do anything to stop it. It just seemed to stop one day. She is nearly 3.5 now & I do remember around her 3rd birthday worried about the China paints & thinking everything was still a choking hazard.
Hmmmm.... you know, I just got an idea of what may have stopped it.
My DS started OT in January. He will not eat anything. Food is either too hot, too cold, it's meat, it's a veggie, it's a fruit ... whatever reason you can think of. So food was our concentration in OT. The therapist has a sniff & lick rule. Every time we sat down at the table everyone would sniff & lick certain foods. Eventually we'd make teeth marks & we're barely at a point where some foods will be swished in the mouth for a few seconds.
My DD, even with the foods she has always accepted, and still accepts, now likes to sniff & lick her food. Maybe
Abigail is a licker but at 4yo now we can tell her to STOP IT when its inappropriate and give her gum, food, straws, etc to lick or bite when we have them readily available.