Hi, 

Icon competition is reopen now. 
Sorry for late. 

http://www.math.sci.hokudai.ac.jp/~gotoken/ruby/a/icon/


This version is little complicated: 

  - You must input vote id which is displayed. 
  - You can sign and write comment when you vote. 
  - You cannot vote for same option twice soon. 

By these restrictions, I intend to suppress multiple vote but I don't
forbid absolutely that; you can multi-vote if you want strongly.
Indeed, I check only your name and host address.

-- gotoken