Pick your own theme ATC swap (U.S.)

Pick your own theme and send your partner a set of three ATCs in that theme. Include a note about the set and what the theme is. Did you pick the theme before making the ATCs, or did you make the ATCs first and found that three fit together in a theme?

The sky is the limit with the theme you choose- color, style, mood, subject. If you were creating a swap for sending those three ATCs, what would it be? Sender's choice, does not need to be based on recipient's profile, though try to avoid dislikes if possible (with the understanding ATCs may be created prior to partners being assigned).

1 partner
3 ATCs

Standard stuff:
- 2.5" X 3.5" size
- put a bit of effort/creativity into them
- package/postage appropriately
- label ATCs with name/date, add swap name to ATC or attached note per your preference