As a disclaimer, this is bad advice. it is just what i would do in lacking a full deck.

I want to say a package with [[lotleth troll]] and [[corpsejack menace]] would be fun but it probably wouldn't be. Instead you can go with [[golgari grave-troll]], [[life from the loam]], and [[ghost quarter]]. You can fill the yard and deprive them of mana as well as use Lilly to destroy their hand.

Or you could try to feed the goyf as much as possible. I would go for chromatic sphere/ star to dig and get artifacts in the yard. [[Nameless inversion]] will be your junk bolt in this situation. Don't think of it as killing a creature for 2 but as a crafty pump for the win or as a kill + buff. Also [[peppersmoke]] but that is an even worse suggestion than the rest.

You can side or main [[butt game hunter]] if you have a lot of tron in the meta.

An interesting idea I can't use because of my meta is if you use [[favor of the mighty]] and a metric crap load of kill spells to make sure Dr. Goyf and Mr. Rhino are the highest cost creatures out. This is a pretty dumb idea but it rustles my Johnny in all the best places.

Atheros or anafenza the foremost could be interesting. You would need the manabase to support it though.

If you have all your fetches you can splash red for [[tarfire]] or blue for thing in the ice. If you go for TITI, take phyrexian revoker and Thalia also. It may not be good but you would keep the opponent guessing and it would be pretty funny if it won.

If you want to go serious, just stuff it full of cards that are tried and true. Just remember it won't be as good as normal junk so any hate will work extra well on you. Without a tuned deck, just go out to have fun.