Oh boy, has this been a hot topic among teachers. First up was Google Classroom Bitmoji banners, except that Google adds a grey overlay that tones down the images (for readability) so teachers moved on. Next was banners or whole scenes for Google Sites and other media. They ranged from recreating classrooms to fireside scenes to intricate displays with hyperlinked books, posters, and lessons.
Then came animated Bitmoji scenes. Here's mine :-D. For this one I used a combination of backgrounds I found on the web, some shared furniture on a template, and my Bitmoji. I then uploaded slides and animated it using the gif maker, https://gifmaker.me/
A new craze that's making the rounds is apparently Virtual Lockers (or cubbies). You can pick up a template and instructions from We are Teachers at https://www.weareteachers.com/virtual-bitmoji-locker/. This might be fun to assign to students.
Wakelet of different Bitmoji Resources: https://wakelet.com/wake/43762508-1d7e-4ce9-aa3e-01781b38d120
Article by Hello Teacher Lady: https://www.helloteacherlady.com/blog/2020/4/how-to-create-a-virtual-bitmoji-scene-in-google-slides-or-powerpoint
Bitmoji Classroom Template: https://mailchi.mp/774c0ba96812/bitmoji-classroom
@MrsParkShine replaced her Bitmoji with an image of her real self by taking a video of herself, then using unscreen.com to remove background. She then added the video to her Google Slides.
A little different than Bitmoji, but here's a tutorial (video) on adding animated GIFS to your slides: https://youtu.be/H6Nh1gBe8Zo (Skip to 3:30 for the how-to do this).
How to create a Bitmoji classroom on Canva
Make a Bitmoji Scene in Google Slides
How to Create an Interactive Bitmoji Classroom
Bitmoji: A Comprehensive Guide