I use belly bands for Boomer at times because I can't trust him to always pee on the pad. They are great. I also tried diapers and it was just a mess.
At first I wasn't sure what pad to use but found that the Ultra Absorbant pads work the best. I just had to make sure to place Boomer's penis in the center of the pad otherwise the pee will go through the edges. He will sometimes still go to the pad in it and try to pee.
The website below is the one I used before and really like their designs
The Official BellyBands.net Website!!!