As one of its daily deals, PricePlunge offers Cell Lock-Up: The Prison for Cell Phones for $6.99 plus $3.99 for shipping. That's the lowest total price we could find by $2. It can incarcerate six cell phones for up to 60 minutes; if a phone escapes before the settable timer is up, an alarm sounds. Although two AAA batteries are included, you'll need to provide your own inmates. Deal ends today.