...some fancel artists like to list their work as 
fancels or fanart on places like Ebay. Other 
fancel artists list them as "cels" in the 
heading, and don't tell you that they're fanmade 
until you read through the description. And there 
are a few who like to call their work "doujin" 
cels.

Perhaps some fancel artists are uncomfy with the 
term "fancel", and think "doujin cel" sounds a 
bit more highbrow. :o)

-Cres