For The Hang Ups Company bunny....at the top left of the home page are 3 links. Click on "Quilt Shop Guides", then scroll down. The bunny is at the bottom of the North East section.
For Guidelines, under the animation on the home page is a link that says "How to Make Square-In-A-Square Blocks Any Size Without Any Math", and it has a pink (or red) & white block. Click on that, then a new window opens. Go to page 2 & the bunny is at the bottom. Honest!
The one I haven't been able to find is at MaterialPleasure.com. There's no clue & so far I've looked at 40 of the 173 pages, plus the links across the top. Ugh!