Here is a list of all the accepted mods on the server. Note that this list is constantly being revised, and often changed.
Texture pack changes that are allowed.
Ore graphics, (Change the appearance of ores to make them easier to see in caves. Can also include other blocks.)
Pumpkin Blur Graphics, (Get rid of that annoying pumpkin dark zone when a pumpkin is on your head.)
Particle Effects, (I personally changed my water particles to bright orange, easier to see the fish when they're incoming.)
Notice... ANY texture pack change that changes something that was previously not transparent, into something that is transparent. Is a texture pack change that must be approved on the forums before use. We do not support xray texture packs.
URL links will be up eventually.