Household Vessels ( aka Relics) are the foundations of storing a genies magic via safehouse or sentence to a lifetime of imprisonment.
If such a being ever escapes from it’s the source, they will have very little chance for survival and often fades away.
Stories can be told in many ways but only two has made stories romanticizing the way of belief,
An object made of brass to support the young prince to win a princess’ heart, and an item created from glass to support an astronaut in need of companionship.
Lamps / Incense burners – Are often the most Powerful vessels, they can imprison any creature and can be marked with a seal that can never fade away. At most this is highly depicted as Monsterous or male subjects.
Bottles / Flasks – Are often a nice substitution but can be risked if breaking the seal once fallen and shatter to a million pieces. Demons and Female subjects are the most popular choice of depiction
Gemstones / Rings – Rarely appear in many media cultures, it is by far the weakest of the vessels. It’s power is small and can only house subjects who does not fit the require materia to withstand any power.
Bowls – unknown
Household vessel (etc) – Any genie can be inside and imprison by different methods from encasing them into a jar, an enchanted item, or perhaps an inexpensive Stereo speaker. It may not be as powerful as a ones above, but it’s the closest to encase them