This is my first of many rig packs that I will start releasing once again. Make sure to download the 2d Mouth Maker in order to change your mouths in BlockBench. You don't have to use my mouth rigs but I'd suggest you do.
https://www.mediafire.com/file/wufrkzz1ez9o5fo/Poppy_Playtime.zip/file
https://www.mediafire.com/file/jt4bfqycbj4nbmq/2d_Mouth_Maker.zip/file
Things to know:
.Mommy Long Legs can stretch her arms, legs, and neck.
.Huggy Wuggy, Kissy Missy, and Doey have hidden teeth.
.If you see a transparent like block on CatNap or Boxy Boo that's just something to hide certain parts of the model. Just mess with the render depth if you see it.
.If you make a 2d mouth make sure the inside is set to opacity 7 and filled in white so you can see through. Only the inside.