Image sources:

• – The Bluebird, Spiderman :
  http://www.carrentals.co.uk/blog/wp-content/uploads/2009/02/transformers-battle1.jpg
  http://media.comicvine.com/uploads/0/77/116015-155054-bluebird_large.jpg
• – Optimus Prime, Transformers:
  http://www.carrentals.co.uk/blog/wp-content/uploads/2009/02/transformers-battle1.jpg
  http://www.carrentals.co.uk/blog/wp-content/uploads/2009/02/transformers-battle1.jpg
  http://tfwiki.net/w2/images2/thumb/9/96/Afterdeath-gameoverman.jpg/300px-Afterdeath-gameoverman.jpg
• – Ch’p, Green Lantern:
  http://dc.wikia.com/wiki/File:Chp.jpg
• – Dr. Sun, The Fantastic Four:
  http://1.bp.blogspot.com/_DvKhdNIxfgE/Sr6vw1ypURI/AAAAAAAAAL0/HjxD_lxa4eQ/s400/Doctor+Sun.jpg
  http://monomythic.files.wordpress.com/2009/04/herbie-7.jpg
• – Miss Arrow, Spider-Man:
  http://dorkshelf.com/wordpress/wp-content/uploads/2010/01/maximum-clonage.jpg
  http://media.comicvine.com/uploads/1/15776/583884-ero5_large.jpg