The calendar included a picture of the caveman and robot. This tub had the forestman and clown, along with mermaid parts (pictured above). No accessories or stands though.
The build-a-mini can have some great random parts in it. Sometimes you can strike gold amongst the tubs, so it’s worth a peek. At $9.99 for 3 minifigures, however, it’s a bit steep for the more common parts.
Thanks for sharing your find, JAYMATIK!