Grabbing a Sprite

 Sprite newHandSprite1;
    GameObject newSpritePosition;
    LayerMask YourLayerMask;
    void Start () {

    }

    void Update () {

        //Choosing Any input, you can do a collision or whatever!
        if (Input.GetKey(KeyCode.Space))
        {

            //Do your finding , I love Overlapcircle because of simplicity

            Collider2D hit = Physics2D.OverlapCircle(transform.position,1,YourLayerMask);
            // Now do this
           if (hit)
           {

               newHandSprite1 = hit.gameObject.GetComponent<SpriteRenderer>().sprite;
               Destroy(hit.gameObject);
               newSpritePosition.GetComponent<SpriteRenderer>().sprite = newHandSprite1;

           }


        }


    }



}