you next to klidding arent you?
is there anything in lmms that you cant experiment with? Isent that the real question to be asked?

But to push you out of boredom..
Take one of the demo project and experiment with the default FX-filters on each of a track in the demo. If you want to know all fx-effects on the sound, you should be out of boredom for the rest of your life.. dont really know how many dials all FX plugins have combined, if its 'n' then you have n!^n!/2 boredom killing experiments.. ..gues its closing in on grain of sands on miami-beach -if i remember my combinatoric correct
But it may get boring ofcause.. :p