Wall Man - Can turn himself into a wall. Unfortunately, he can not turn himself back into a man.
The Disc - Can throw a Frisbee equally well with his left and right hands. Can even throw two discs at once!
Splatterboy: Can blow himself to bits at will and without explosive devices.
Retrorgo: Can ejaculate backwards.
Autophage: His own flesh is delicious to him.
The Human Blister: Sunscreen has no effect!
Coma Hero: Can sleep for years.
Gronoze: Can evelope his enemies in a thicket of his own nasal hair.
Haliton: No mouthwash can vanquish his oral stench.
Surfacto: Can turn any portion of his body to soap.
Ambidextrous Man–Can write just as well with his left hand as he can with his right. Unfortunately, he’s left-handed.
The Rabid Fangirl–Able to glomp anime characters with a single pounce, especially bishonen. Of course, anime characters aren’t real, but don’t tell her that 
And I have to toss this one in from Just for Laughs
The Radio-active Hack Comic–tells jokes so bad you won’t even laugh out of pity.
Hue-man - Instantly knows the difference between tan, beige, brown, mocha and any other combo of shades and hues imaginable.
Sadly, he can’t parley this into a decorating business as he has no taste.
Comic Book Guy With his vast knowledge of super heroes, he is able to recall instantly how any superhero would respond to any crisis. Unfortunately, with no other powers of his own, he’s not actually able to put that knowledge to use.
Deja Vu Gifted with “second sight” she has the uncanny knowledge to think she’s “seen something like this, somewhere, sometime.”
One that I’ve always remembered from a similar thread some time ago: Hands-Fall-Off Boy. Unfortunately, he’s not Hands-Fall-Off-And-Then-Reattach-Themselves Boy
And then there’s the amazing Coma Man, with the uncanny ability to fall into a coma at will…now all he needs is the ability to get out of it.
Radish Lover - Genitals tingle uncontrollably in the presence of radishes.
Don’t ask why…
Wolvie : Has the power to materialize a berserk wolverine in his pants.
Quantum Leaper : Has the ability to teleport .0000000000000000000000000000000000000000001 inch.
Shampir: Has all the weaknesses of a Vampire, and none of the strengths.
The Oceedee’r: The uncanny ability to detect even the tiniest amounts of filth and contamination. Often so tiny, that no amount of cleaning will ever eliminate it to his satisfaction!
The Messenger: Blessed with the Mystical Power to summon and communicate with the Almighty. Sadly, it turns out God really did die at Auschwitz.
Pizza Boy - able to devour cheese topped bread really quickly - also, bad complection.
Soluble Man: He is soluble in water; this is useful in cases where the resulting solution is all kept in one place until evaporation reconstitutes him, a few weeks later.
The Picture Straightener: Has the uncanny ability to unfailingly discern when things are not quite level.
But only once.
He can go into quality control in a paints factory. I’m completely serious; I worked for years in one but we only made white bases… then years later I did some office work in one that made powdered paint and Those Guys could give you the RAL Chart values of any color. One of them once got a color wrong by two shades and they were laughing at him for months!
::mutter:: I knew someone would find a use for that. I’ll try harder next time. 
As Splatterboy possesses no other Super Power, this goes without saying.
He-Man : The superhero who’s power is gender uncertainty, and needs a double label so he doesn’t forget.
She-Woman : He-Man’s sidekick.
Ouchy Man : Has the mutant power to turn his stomach lining into Tabasco sauce.
Stuporman : Possesses the powers of invulnerability, flight, superstrength, and heat vision - as long as he’s asleep. Note : Light sleeper.
Actually, teleporting 2.5*10[super]-45[/super] meters, which is considerably less than Planck length (the shortest distance possible to measure in this universe), might have very useful theoretical explorations.
Mind Man: can communicate telepathically to anyone else who also has this power; unfortunately, nobody else does.
Hometowner Man: can heal or inflict slight injuries on anyone but himself.
It’s a lot more challenging to think of a power that could be useful, and tweak it just slightly to nullify it, instead of “can disintegrate watermelons by looking at them”.
Speedo: Can run at just under the speed of light. Do you know what air molecules will do to you if you collide into them at just under the speed of light?
The Postcognator: Can predict the past
Colorguard: Can get stains out of colors without fading
The Bureaucrat: If you’re in trouble, just call! He’ll help you after he gets back from lunch, assuming you’ve filled out all the approved forms correctly and approval has been granted by the special committee that investigates these things.
Adhesior: Can stick any part of his body to any surface on the molecular level. Unfortunately, he cannot unstick himself.
Kodak Man: Can materilize a a photo of anything he sees out of midair. However, he is blind.
Bambino: Can transform himself into a bright orange baby deer.
Nose Bleed: Has the power to make his nose start bleeding at any time.
Bubble Man: Has the power to shoot bubbles out of his eyes. Unfortunately there isn’t anything dangerous about the bubbles except that they irritate his eyes.
Facade Fighter: Can “power-up” himself with an over-the-top flashy light show like in various anime programs, but doesn’t actually have any super powers.
Toe Pen: Has the ability to dispense ink from his big toe, so he could write with it, theoretically, if he were any good at writing with his toe.