On the assumption that, just for now, the largest bottle was thrice larger than the smallest, what sprang to mind first were these five:
Water
- Swing Bottle at Water combo = 3 units.
- Puts out fires
- Changes 'Permanent' Bubbles into 'Recovery' Bubbles
- Changes Water Gels into Water Zols
- Rusts armor (Changes Darknut tiles, reduces their step speed)
Potion
- Up to 3 units can be purchased.
- Restores 50% of Magic and Hearts
Gelly
- Swing Bottle at Gel = 1 unit (P.S: Zols can't be divided by non-weapons)
- Creates a Gel of the appropriate colour*
Sand
- Swing Bottle at Sand combo = 3 units
- Puts out fires
- Disarms statues (Kills "Shooter (Fireball)" enemies)
- Irritates Patra, Digdogger and Gohma in some way
- Changes all Bubbles into Fairies
- Awakens an Owl Statue
- Turns non-water Zols to stone?
Fairy
- Swing Bottle at Fairy = 1 unit
- Creates a Fairy
- But can it revive Link at death? I dunno.
*To make this easier, I'm thinking of removing the Green Zol/Gel and non-Tribble Fire Zol/Gel, leaving three varieties of Gel(ly), and Water Zols/Gels as the only non-Tribble Gel.