D&D 5E Unlimited Unseen Servant once a day from an item?

[ClaytonCross]

Is there an item that could make a permanent unseen servant (which I could put / pull out) or a item that lets me cast it once a day? I was kind of hoping to give a character a travel companion of sorts but wanted it to be official if at all possible. (Trying to get it for my character in game and my GM is not big on home-brew.) If there is anyway to get a seen servant that would be fine too.

I was thinking that maybe the character had persistent "unseen servant" that was a "copy" of his dead wife at least in mind. No necromancy or trapped soul but a copy of her mind in an illusion that just helps him out. Kind of a story flavor like having a locket picture except he can only talk to her for a little while a day. Also, the illusion knows it is not really her but acts like her and can't help but want to take care of him in his travels. He doesn't order it around like other unseen servant's she almost orders him around making him take care of himself but helping him at the same time. (Note, I don't want to use magic initiate. I really want it to be attached to an item that the character is really attached to for this reason but could be stolen/lost/destroyed.)

Thank you for any assistance. Not sure if such and item exists. I just thought it would be interesting.

 

[Cap'n Kobold]

Taking the Magic Initiate feat or Ritual caster (with the 'ritual book' being the item that allows them to summon)would allow you to use the spell.

I can't think of any specific item already in existence, but no reason for a DM not to be able to create one. No idea how much it would cost though.

 

[Jester David]

It should be a Rare item. It's potentially potent, especially with creative players. But it's probably not game breaking. One of the least broken at-will spells.

You could bake in some balance to the item.

Servant Urn
Wondrous item, rare
As an action you can create a phantasmal spirit that replicated the appearance of the person whose ashes are stored in this urn. This functions as the unseen servant spell, except that spirit has 10 hit points and lasts for 8 hour. If the spirit is reduced to 0 hit points it dissapears and can't be summoned again until the next dawn.

 

[jgsugden]

It seems like a Poltergeist does the trick, perhaps one that is haunting an item of hers that he is carrying? No need for the spell.