Two years ago I wrote about the FamFamFam Silk icons, a free set of 1000 icons that I use. I still use them in all my applications, and have even modified a few of them to suit my purposes. They come as PNG files, but I have converted them to GIF format so I can use them in for example Notes action buttons.
If you downloaded my generic database template, which I posted about two years ago as well , you have the GIF version of all the icons as image resources.
So if you haven’t taken a look at those icons, you should. Few things help your application or website to look professional as a set of consistent looking icons. And yes, it works in Xpages. You just have to add a little piece of CSS to make it look good, as Per Henrik Lausten told me when I posted about that in StackOverflow.
The magic code is: .lotusBtn img { margin-right: 10px; }
This will give you 10 pixels between the icon and the label. It might be enough with 5 or 6 pixels, depending on what the desired look of the page is.