photo from Kids Modern
Can't get your baby to sleep? The lolaloo may be just the thing your looking for—or maybe not. Here's how it works: It has two velcro fastenings, which you attach to the handle of your stroller or to your baby's crib. When you turn it on, it vibrates (you can adjust the speed) and "rocks" the stroller.
ohdeedoh found this video of the lolaloo in use on youtube.
The lolaoo is German, and I'm not sure if it's available in the U.S. yet, but if it comes here, would you give it a try?