A small, ornate glass bottle with a sturdy, metallic Art Deco-inspired cap, featuring intricate geometric patterns. The glass is slightly frosted, giving it a mystical appearance, with a luminous blue liquid inside that glows faintly, suggesting its magical properties. The bottle's shape is cylindrical with a slight taper towards the base, and the cap is adorned with steampunk-style gears and rivets for a functional yet decorative look.