I've spent a good week on this now and I'm pretty happy with most of the boxes but feel free to ask for adjustments or give some ideas!
The original shulker box isn't changed so if you use these in a group, the original is still an option.



Animal Backpacks:
Red - Ginger Cat

Orange - Fox
Black - Panda
Blue - Axolotl
Green - Frog
Lime - Alex
Light Blue - Steve
Brown - Teddy Bear
Light Gray - Rainbow Sheep
Pink - Pig
Purple - Enderman
White - Penguin
Yellow - Bee

Normal Backpacks:
Magenta
Gray
Cyan



This changes both the block and the item and the block only faces one way when placed. You can place these in item frames if you wish to change their direction.
THIS IS AN OPTIFINE PACK