Berlin's public transport company (BVG) is offering customers the chance to buy day tickets impregnated with hemp oil, which it promises will have a "calming effect" when they are eaten.
The tickets, which cost € 8.80 ($ 9.95) each, are made from edible paper and are sprinkled with "no more than three drops" of hemp oil.
BVG says the oil was obtained from the seed of the cannabis plant. Unlike the flowers, this contains none of the intoxicating substances such as THC.
As a result, the operator says, the oil on the tickets — which are valid for 24 hours — is "completely harmless to health" and "completely legal."