I've now decided on the following list of Origami models to use in my calender:
- Angel Fish
- Waterbomb
- Flower
- Desk tidy
- Stingray
- Dolphin
- Pinwheel
- Butterfly
- Bird
- Bat
- Chicken
I tried to strike a balance between animals both land and sea as well as toys and useful items. I think overall I manage to include enough of a variety to keep most users interested.