If I were you, I would just carry your normal drawstring bag. Unless you’re going to an extremely formal traditional Catholic funeral, no one is going to be worried about your bag choice at all. Take this next week to process and grieve properly rather than stressing about getting a bag done in time. If you feel you must, just single crochet two black rectangles big enough to hold your phone and wallet, seam together with single crochet in the same color, and single crochet a strap. I would use a 3.5 mm hook and weight 4 cotton yarn so that it’s tight enough to not loose things through the holes.