yeah! for a MoC contest: Toa Helryx, Nidhiki, Naho, Tuyet, Dume, Spinner, Savage, Prototype, or Nikila. a Toa of Shadow, Gravity, Iron, or Plasma MoC contest. a MoC contest where you have to build one of the Toa from The Kingdom Alternate Universe(Toa Balta, Dalu, Tanma, Velika, Kapura, or Defilak). an Iron Wolf MoC contest. a Toa Hagah building contest and can only build Gaaki,Pouks,Kualus, or Bomonga. not Norik or Iruini because they have already been made a set. a weapon MoC contest. a Nynrah Ghost MoC contest. i got so many more ideas.
And for an Art contest: draw a Great Being(they can look like a bionicle set or robots like Mata-Nui's body).a mask drawing contest were you have to draw the mask of Clairvoyance, Growth, Rahi-Control, Regeneration, Creation, Psychometry, Intangability, Possabilties, or mask of Mutation. you could also do a Rahkshi from the types of rahkshi list here: http://biosector01.com/wiki/index.php/Rahkshi