I decided to give it a shot and play with some Sharpies as well. Since Seattle now has a hockey team - officially - I thought I’d have my XXL draw up the logo.
I mean, that, and I just couldn’t think of anything else to draw… 
I took some video as well, and will throw it up on YouTube and post it here tomorrow.
I used a Sharpie holder from Thingiverse, and Vectric V-Carve quick engraving function. 0.050" deep Z-axis travel and 0.10" line spacing.