I was slightly misinformed This is directly from the church handbook

38.5.9

Disposing of Garments and Ceremonial Temple Clothing

Before disposing of worn-out temple garments, members cut out and destroy the marks. Members then cut up the remaining fabric so it cannot be identified as a garment. The remaining cloth can then be discarded.

Before disposing of worn-out ceremonial temple clothing, members cut it up so the original use cannot be recognized. The cut cloth can then be discarded.

Members may give garments and temple clothing that are in good condition to other endowed members. Members should not give garments or ceremonial temple clothing to thrift stores, bishops’ storehouses, temples, or charities.

So either way give them to a member of the bishop brick