Gravity Rocket launcher
rocketlauncherimage.projectile=gravityrocketprojectile;
Or something to that effect. might be rocketgravityprojectile or something else. I've done it before, though. If all else fails make it a portable pirate cannon with cannonballprojectile

Also, Banhammer is much fun.
t/timescale
t/banhammer
GA-BSHHHHHH
t/timescale 1
Also I occasionally enable the mininuke at my server if I'm about ten minutes from shutting down.