(The following is not written by the original author, or the uploader of this image.)
If anybody has wondered where to get the logos and proof of their existence, then I suggest you'd go here. Now at first glance, you wouldn't be able to find the logos. However, by "inspecting the element" on the image where it says "ADVENTURE" under you'll find a bunch of html, INCLUDING the original logos within the html. The originals are showed here for Jailbreak, Bard Quest and Problem Sleuth. Removing the "https://web.archive.org" will direct you to the site as it currently is with a similar logo, but with updated, not hand-written text.
I'm quite certain I'm the only one who wondered where these came from, but I'm happy that I found out, and shared this information. ~HarmonicaPony