Simple, but sure took a lot of time. The title choices were Royal Grunge of Griffin Grunge (based on the thought of Griffins being royal and having wings).
If I could remake this, I would make the grunge texture smaller, but I don't mind it the way it is right now.
I made the grunge texture myself by taking photos and setting high contrasts to them. Then I made them black and white, hence why it looks so messy. I didn't want to use brushes in case that would cross the line
So apart from the actual shirt template and the logo, everything is done by me.
Tools: Paintool SAI and MSPaint (lol)
Hope you like it!