To start i appoligize if this is not where I am supposed to post this kind of thing I am new to this whole posting thing  
second i have search for a mod that will do this idea and I can't find any thing that fits  
and third I am not a modder but I am aware of the work that it takes to program anything! 
so I do understand that this Idea may not be possible or may not be worth the work it may take 
  
now on to the idea I have noticed in games like zelda that when you have like a mystical forest there are these floating 
fuzzy dust things in the air  
like in this picture: http://media.giantbomb.com/uploads/13/139979/2181873-lost_woods__majora_s_mask_.png 
they serve no purpose but they add to the atmosphere and I was wondering how hard it would be to make a mod  
that would add something like this to forest biomes 
  
just small glowing fuzz balls floating through the air that do nothing but float and do not collide with the environment or player  
they do not even have to put out light (I think if they put out light it would hog resources) I will mention that If  
no one wants to bother with creating this kind of thing I understand but if they could post a link or something  
pointing me in the right direction as to what I need to learn in order to do this I will look into it my self and  
see if I can create something like this myself. again I apologize if this is posted in the wrong section or even wrong site!  
i was unsure as to where i should be posting this kind of thing  
  
basicly as a summary I was thinking of this as like a particle effect  
my email address is: 
[email protected] if anyone needs it to contact me thanx