I am fine with a good mix of custom items and "D&D items", like some rings taken straight from the books with their lore and effects, while some custom stuff like the mentioned apple bless ring (though that one would be more balanced if you remove the ability to eat in combat so you have to eat before combat OR use it for out of combat stuff)
To be fair, the effect lasts 1 round; so whilst it's powerful, it's not like you eat an apple and then just spam Blessed attacks for a whole fight. It's is a pretty solid use of a Thief's extra Bonus Action though... :P
