Haha I agree that in SSB, th best way to die is to take someone along with you. Some ways that weren't mentioned:
-do an up+B with Bowser, which grabs the enemy and suplexes them backwards after a jump - aim for the edge of the map!
-grab with DK and jump off the edge of the map
-place yourself near an enemy and throw a bomb (any version, really) at yourself

Or forget even dieing - make the others die in the most humiliating ways.
-catching someone in a Yoshi egg at the edge of the map and pooping the enemy into the void
-try killing someone with Peach's Super Smash without attacking them afterwards - see if you can figure this one out!

But I digress, haha!