Three different Tillandsias in a milk bottle with cork.
A set of three:
Tillandsia Multiflora (left)
Tillandsia Ionantha red (center)
Tillandsia Caput Medusea (right)
The Tillandsia in the milk bottle does not need water as long as the bottle remains good. If you still want to water the plant, it is important to let the plant dry completely before you put it back in the bottle.