Oraxen allows you to create paintable items and furtniture based on POTION and LEATHER_HORSE_ARMOR, so let's first see how to do it in BlockBench!
How do I do this?
First step open your Blockbench model
Select the face to be painted
Activate the tint option
Use white to paint better
And select all the faces of your model with the option!
clock:displayname:"<white>Clock"material:LEATHER_HORSE_ARMORcolor:255, 255, 255#rgbMechanics:furniture:barrier:falsedrop:# useless if you are not using a barriersilktouch:falseloots: - { oraxen_item:clock,probability:1.0 }Pack:generate_model:falsemodel:custom/furniture/clock