USPS actually allows a bunch of odd items if they meet basic requirements:

- Potato: write the address directly on the skin and add postage - Coconut: often mailed from Hawaii gift shops - Brick: just needs postage and an address - Inflated beach ball: address it directly, ships like a parcel - Plastic Easter egg: fill it, tape it shut, and label it - Flip-flop: address the sole and send it off - Small pumpkin: allowed if it’s dry and not restricted by ag rules - Live queen bees (plus attendants): surface mail only, special label - Day-old chicks: special packaging and timing required