I have to agree, that list isnt particually inspired. I think we should keeps these lists of just *things* to a minimum. I could quite easily cut and paste a huge list of things that could possibly be made into plugins. Id like to see a little more discussion about why you think these plugins would be useful and how they could be created.
I think people should also start to do more to help make the plugin. Find some images or 3d meshes which could be used as the basis. I know theres some really great plugin makers out there at the moment that seem to be able to make anything you throw at them, but it would be better if people tried making plugins themselves too. Put a little effort in to start with and im sure loads of people will offer a hand if you get stuck.
This rant isnt really aimmed at devilskater, ive seen a few posts like this one, its just the one too many for me