DIY Moss Graffiti, couldn't work out if this should be in gardening or crafty, looks fun either way.
The printed pen graffiti)- it's functionally equivalent to the standard printer's print head, but made the shape of the pen. With it, without computers and modeling software, you can imagine something you painted models, like graffiti.
The Rare Book Scholar’s Secret Weapon
How to Draw Graffiti Names - step by step guide