Not Orchids and not members of the other plant categories here, we still find these really rewarding and fun.
Int Rare near-miniature from China with entire rounded leaves!
WarmGiant Corpse Flower
Int Showy insectivore forming upright "vine" of inflated red-marked pitchers
Int - WarmFairly compact and somewhat slow growing fern
Int - CoolTemperature tolerant Tillandsia species for a mount