Modern combo

[Bman0121]

What are some ways to cheat in  {Progenitus} into play I know  {Garruk, Caller of Beasts} will work any one elso know if any?

[Chandelin]

{Elvish Piper}
There are a few ways of converting mana. Like having {Orochi Leafcaller} or just using {Prismatic Omen}. Or just play {Green Sun's Zenith} for eleven and pull him straight from your library.
You can also use {Lure of Prey}.

[Deebiia]

I cannot remember the cards name, but I think it costs 3 and it gives you 1 mana of each color.
Also {quicksilver amulet}.

[Gorzo]

I cannot remember the cards name, but I think it costs 3 and it gives you 1 mana of each color.

You're probably thinking of {Channel the Suns}.

Mana ramp out the yin-yang and {Summoning Trap} is a popular deck that gets the Eldrazi lords out super fast, it could work with Progenitus, too.

{Elvish Piper} is probably the simplest way, though.

[Double-O-Scotch]

{black lotus}, {sol ring}, {island}, {lightning greaves}, {tinker}, {blightsteel collosus} BAM!!!! LMAO

[Mlerner12]

{black lotus}, {sol ring}, {island}, {lightning greaves}, {tinker}, {blightsteel collosus} BAM!!!! LMAO

Not really moderne, only casual. Lol!

[Agrus Kos, Enforcer of Truth]

You casually knock something off the table and when they pick it up you put {Progenitus} onto the battlefield and hope the don't notice?