Six – Tooth straightening potion
This one is a somewhat horrifying potion mishap.
Oddly enough, applying the potion to the teeth only will still produce the intended effect of straightening them however I would advise against using it (Stick to the normal tooth straightening brewing method.)
This version should it come into contact with any body part other than teeth will cause additional teeth to spontaneously grow there.
Not necessarily lethal in small quantities (a few teeth growing out of arms or legs etc. would be unpleasant but treatable) however if an unfortunate individual were to be submerged in such a potion…. I shall leave the rest to your imagination.
This potion is created by performing stages one to four of the Tooth Straightening Potion on page 57 of "Magical Drafts and Potions" followed by stages three to seven of the Skele-grow potion on page 60. (The pages in his text book were stuck together)
Seven – Painting reanimation coating
Of all the potions accidentally produced by Mr Longbottom I think this one may be my favourite, if only for the novelty of it. Rather than killing a person directly like a poison, this modified painting reanimation lacquer when applied to a painting will animate it as expected with the additional effect of causing the subject to crawl right out of the image and attack anyone in sight.
If attempting at home keep a bucket of corrosive nearby to throw over the paint creature.
I strongly advise against its use on any image you do not feel confident in your ability to fight.
If you decide to use it on an image of a tiger or a bear for example don't come crying to me.
To produce this effect, drop a pot of ink and a raven feather quill into the potion three minutes into the brewing time.
Eight – Flu remedy
Intended as a means to treat the symptoms of flu (specifically the excessive mucus build-up which causes all that irritating sniffling the afflicted seem prone to) Longbottom's remedy has the unfortunate effect of working too well in that when consumed it will totally remove all mucus from the body.
Within several minutes the mucus lining of the stomach will be dissolved and without this protective layer the stomachs acids will begin to eat away at the stomach itself.
Potion produced by adding almost twenty times the usual amount of toad skin. (Once again, he dropped the damn jar)
Nine – Anti-nausea draught
I trust you've all heard the phrase "puke your guts out".
Very, very literal.
Very, very messy.
His pet toad crawled all over his chopping board prior to the lesson and its secretions contaminated the potion. Any breed of toad will do.
Ten – Swelling solution
In direct contrast to the Tooth Straightening Potion detailed previously (Number Six) this Swelling Potion is not lethal if the individual is fully submerged but can be if just a single body part is affected.
Like a regular Swelling Potion, it will cause objects to swell in size upon contact however when used on living organisms the effects are isolated to the body part which the potion touches.
(Try to imagine those over-sized novelty hands people sometimes wave around at Quidditch games) It may seem comedic in theory however in practice the strain placed on the rest of the body to support this growth can be fatal. (Stick to the fake hands if you are planning to attend any sporting events)
If the whole body is affected at once (through full submersion) the entire individual will swell to a larger size with less overall harm to the body and a simple Deflation Draft can be used to restore them.
Produced by using an entire puffer fish in the potion instead of just the eyes. (I didn't even know I had a whole puffer fish in the store room. I purchase the eyes in jars. Did he bring his own?)