YOU SAID:
I saw a man eating a can made of a fan.
INTO JAPANESE
私はファンで作られた缶を食べて男を見ました。
BACK INTO ENGLISH
I saw a man eating a can made by a fan.
INTO JAPANESE
私はファンによって作られた缶を食べて男を見ました。
BACK INTO ENGLISH
I saw a man eating a can made by a fan.
That didn't even make that much sense in English.