Well, I know it's not really everyone's favourite Ikeda works, and it's not especially easy to find it! But it does exist in manga and anime that can see on youtube!!
Well as for the contest, it's a multicreations contest: you can do fanarts, fanfictions or comics. No special theme except that they have to be on oniisama e (brother dear brother).
There's lot of Ikeda's Stuff to win (ROV Live movie, Music from ROV anime and movie, Oniisama e, Lareine's remix of Bara wa utsukuchiku shiru...)
Just put them here or send them to +firstname.lastname@example.org+
Warning: by proposing creations for this context, you must accept that they will be published on deviantart and my oniisama e website for the others to vote for it (don't worry, you'll have your credits, I'm not trying to steal your arts!!!)