Paste the milk carton walls with flowing art nouveau patterns ... boxes and any other decorative items you wish to attach to the front of the holder: fabric bows, artificial sunflowers, acrylic ...
You could even make a miniature yet spooky wreath for your tiny haunted house's front door. Also, add some light to this ...
Nippon Paper Industries Co. developed straw-free milk containers in 2020. The company in 2019 considered using paper-derived straws for the cartons, but that plan proved too expensive.