I have the tristana facebook skin and the cho'gath nigthmare skin too. Now, can you tell me where can i fin codes to recieve more skins or champions without spending money?

I believe that those are the only ones.

Sorry but that is all the free stuff you get right away.

This: http://www.leagueoflegends.com/board/showthread.php?t=242106

3 easy steps
1) Go to LA Convention Center October 2
2) Get Riot Singed code from Riot employee
3) Go home and enter code

There you have it, free Riot Singed skin! (Not including travel expenses)

there is a human ryze skin, if you ask around at Gamestop some of them still have it and will give it. there is a twisted fate Pax skin that goes for around $60 on ebay. There are currently alot of PAX Jax codes up on ebay now. there is also a riot singed on ebay. good luck

1) build time machine
2) travel back to beta
3) register your account
4) get King Rammus and Ufo Corki

Otherwise, the two you mentioned are the only easy free skins. For further skin info, may i refer you to Encased's comprehensive list: http://www.leagueoflegends.com/board...d.php?t=123056

i want free skins

I dont have any how do u get them ? i cant get tris skin i click on it and cames up EU and and i dont have any thing in the eu

Youtube Alistar skin!

Unchained Alistar is free from youtube.
AW Cait is free by some means.