Create sounds for my cell phone???

[maddmaxx]

I'm looking for info on how to create sounds that I can use for ring tones and alerts etc., and then get them to my phone. I can't seem to find anything through Google except sites that want to sell me already created sounds.
Any input would be greatly appreciated!
I have a Samsung x426

peace

 

[3point14]

sprint?

 

[maddmaxx]

at&t

peace