Straight from Fed-X rules for shipping.....And I Quote: FedEx Prohibited Items
The Shipping Annex as a FASC is bound contractually and ethically to meet all FedEx terms and conditions for shipment. Our clients prohibited from tendering the following items for shipment, and they will not be accepted:
Cash, currency, collectible stamps and coins.
Live animals, except as provided in the Live Animals and Ornamental Marine Life (Including Live Fish) section. (Edible seafood, such as live lobsters, crabs or other types of fish and shellfish for human consumption, is acceptable, provided the shipper is in compliance with all local, state and federal laws.)
Animal carcasses. (Animal heads and other parts for taxidermy may be accepted but must be properly packaged. This restriction does not apply to properly packaged meat or poultry products intended for human consumption.)
Human corpses, human body parts, human embryos, or cremated or disinterred human remains.
Shipments that require us to obtain a local, state or federal license for their transportation.
Shipments that may cause damage or delay to equipment, personnel or other shipments.
Lottery tickets and gambling devices where prohibited by local, state or federal law.
Hazardous waste, including, but not limited to, used hypodermic needles or syringes, or other medical waste.
Packages that are wet, leaking or emit an odor of any kind.
Live insects.
Shipments or commodities that are prohibited by applicable local, state or federal law.
Just Saying!!! Their Rules...not ours.....Could be they have shipped in the past because it's not a recognized currency....YET!!! but maybe soon....Go RV!!!