I needed to find a way to make drawing a sandbox interesting, so I turned to Tumblr, asking my followers:
"If someone would like to see their fav TV/movie characters drawn playing in a sandbox speak now or forever hold your peace!"
I got a couple responses, but gryfindorks's suggestion of Harry Potter is what helped inspire the comic below. I immediately thought Harry Potter Puppet Pals! If you don't know what that is, I encourage you to watch the video, Harry Potter Pupp