This Collapsible Salad Spinner on Sur la table's Web site solves the space issue by using a patented design that allows the bowl to be collapsed to one third of its original size. It's a good thing, too, because a salad spinner is a worthy addition to any chef's arsenal, and many standard models do not stack with other bowls easily, or at best stack awkwardly. This spinner also uses the pull-cord method to spin your greens, much easier than the handle-crank method.
The Collapsible Salad Spinner is available through Sur la table on its Web site. You can snag one for just under $30.