I've only recently gotten into the format myself (lack of standard events locally and no real desire to drop $500 to get into modern) but I can say I've had a blast tinkering and figuring out just silly combos.
I have two decks that are tested and perform pretty well.
First is one with Trostani, Selesnya's Voice as the general. Outside of that, it's squirrels, it's beasts, centaurs, wurms, spirits, soldiers... you name it, if it makes a token, it's in there. Believe me when I say that Advent of the Wurm and Voice of Resurgence will fit in there nicely. But the basic plan is just to generate a few tokens, and then populate the crap out of everything. Toss in Beastmaster Ascension, Collective Blessing, Intangible Virtue, Phantom General and Elesh Norn, Grand Cenobite and things can get pretty ugly, pretty fast. The less expected component comes in the life gain from Trostani - a friend was playing a sliver deck and put Coat of Arms on the field, one board wipe later and my GF (piloting this deck) plays Verdant Force with Parallel Lives already on the field. Our fourth plays a kicked Rite of Replication on said Verdant Force so there are 7 new saprolings per upkeep. Suffice to say, my GF was sitting pretty at 1,200 life when I finally was able to wipe the board again.
My second is a Grixis control-ish deck using Gwendlyn Di Corci as my general. Lots of tutors, board wipes, extra turns, PWs, legendary creatures, etc. I've only just realized what a fool I've been not to be running both Blood Artist and Falkenrath Noble for when said board wipes hit (I'd previously just been relying on Prince of Thralls). A fair amount of discard too, which, oddly is quite nice in EDH. Toss in Consuming Aberration as a group mill card... yeah... he gets out of control pretty quickly.
I've also just assembled a mono-white cat deck with either Raksha Golden Cub or Kemba, Kha Regent as general. I've yet to playtest it though, so I can give more thoughts on it later.
My suggestion, go find a general that isn't as widely played and start tinkering around with the combos that work. Remember that the format is all about casual play and having fun (which I'm sure you're already aware of but a lot of people forget trying to be too competitive). If it's gimmicky, silly, and unrealistic that it would ever work in competitive play... do it!