The Dark Souls 3 Bird's Nest redemption table is as follows:

Exchange the Onion Swordsman's wine to obtain the Sun Warrior Armor.

Exchange the Thunder Pot to get the Iron Helmet.

Exchange the returned bone fragments to obtain the Iron Arm.

Exchange the Giant's Fruit to obtain the Iron Leg Armor.

Exchange the holy bell of the priest to obtain the human face language, "Save me."

Use the lost stone to exchange for the human face saying "I'm sorry".

Exchange the seduced skull to get the human face saying hello.

Exchange the secret blessing to get a human face saying thank you.

It is good to exchange the blessing of the goddess to obtain the human face language.

Exchange the flame pot to obtain a large wedge stone fragment.

Exchange the Black Flame Pot to obtain wedge stones.

Exchange the fragments of the Spiral Sword to obtain the original keystone plate.

Exchange the seven-color stone to obtain the Keystone of Light.

Exchange the yellow crown to obtain the precious stone of thunder.

Exchange the immortal bones to obtain the Shield of the Beast.

Exchange the vertebrae of the shackle to obtain Lucatie's mask.

How many times can you change things in the Bird's Nest in Dark Souls 3

Normally it's once, but you can use bugs to make it infinite. You don't have to commit suicide. You can exit and enter again. Anyway, just don’t pick up the things you throw away for the first time, but continue to put the same things away and then pick them up again, then there is no limit to what you can do.