What do you often see as prominent dungeon themes and what theme ideas of your own do you have to offer and what kind of combo-cycling traps would do you have for each?

Examples:
1. Jungle Level: Thorned Plants that hurt you but you can also slash, rising & falling spikes
2. Lightening Stage: Electric Beams, lightening, etc.
3. Fire: Flame Jets, Fireballs leaping from Lava

What kind of theme-specific traps can you think of making using combo cycling? Specifically, for an ice cavern, a haunted dungeon or mansion, and a palace or temple.