How do you put objects/brushes in Text

I see many people have signature with text often saying there username.
Many of the more experienced graphic artists have things that seem to be parts of the render, brushes and other things right inside of the actual text.
Could somebody tell me how this is done?

No flamming please...

Search for tutorials on google.. theres plenty.

clipping mask

don't use tuts. Clipping masks are good, and also simpler, just set the brush mode to screen or overlay to brush inside text if the text is on it's own layer.

Re-Iterize the type so Instead of the 'T' on the layer, It's just a normal Later. then Select a Brush and Draw!

Thanks if I helped?

To Re-Iterize, select brush, then select the Text layer. Click on the Image. It will say "..something blah blah Re-iterize" Click Yes.

Re-iterize? Do you mean rasterize?

And what do you have against PSD packs and tuts, Remorse? Your pretty much telling people to take the long way and ensure that they'll probably never learn anything. Tuts are the bomb, only noobs don't use tuts, which is ironic because they remain noobs whilst others improve.

I second that. Shayne and his knowledge. People could learn a thing or two. :3 Meh included, of course.

lawl thanks songki.

Do you mean in like Drsyn's GUNZ signature?