Feeling hurt to see your board being scraped? Don't have that extra resources to get metal scrape guards? I have an idea for spraying plastidip on my pennyboard tail to keep the tail from being damaged further.
Plastidip (any color you like)
Step 1: Remove and Clean Any Debris From Your Pennyboard Tail
I previously taped the tail but over time it seemed kinda lifted up and looked ugly. Remove any... things you put on your tail and give it a good wipe.
Step 2: Base Tape
Tape down a couple inches of cloth tape to the tail to act as a base before coating it with plastidip. Use a clear tape to tape any recycled paper so that the plastidip doesn't coat your wheels.
Step 3: Coating and Finishing
Coat the tail with plstidip 3-4 times and let it dry about 10 minutes in between coats. Use blade or scissors to scrape the tape edges and pull the recycled paper away. I taped another section of cloth tape to the tail at about the same size to ensure that the scraping doesn't tear the rubber coating. Good luck.