Hmmmmm, I need one of those. When my garage flourescents burn out, I stand them up on end, and with my safety glasses on, hit them with a broom stick from maybe four feet away.
Get a 4 1/2 foot length piece of lightweight PVC that is large enough to insert them into, set the end into a plastic and paper bag. Bend the PVC until the bulb breaks. Dump them into an old plastic container and into the trash.