On my Ko-Fi Shop you’ll find a whole bunch of free extra content to download!
Most of them are old Patreon rewards, but you’ll also find things that were up for grabs from special events (usually on the comic’s anniversary) that were always free.

You don’t have to pay to grab any of these things (they are, however, for personal/fair use only), but if you’d like to drop a tip at checkout feel free to do so!