(I'm having a bout of creativity at the moment. I'm not sure if I'd make another one in the future but I had fun writing this one up in a jiffy.)
Naturally, you need ingredients that are disgusting and foul in order to have an opposite reaction after you or your subject drinks it. You know how in dreams, if your arms and legs get cut off and you get blinded by forks, It means a great windfall of cash is coming your way? No? Well, hey...
I will start with one of the most sought after universal emotions. Love.
Must be fresh as possible! Still coated with original saliva of said dragon.
Approach only when they're sleeping. Four cups of this will do!
Grab a good chunk out of her head. A strand will not do.
Remove bones first.
Get 'im really drunk and cut one off. Ground it to a powder form.
Say something bad about their mothers or step on their favorite mushrooms. Both are quite effective methods to get tears seeing as how you'll need four cups of these.
If you somehow survive this, make a wish on the tooth first to prevent Djinn from seeking revenge. Ground tooth to powder form.
Get a good fire going.
In one bowl, mix Gnome Tears with Satyr Horn. Set aside.
In separate bowl, mix Troll Spit with Djinn Tooth. Set aside.
Pour Tear/Horn mixture in pot and bring to boil. Add Mermaid Hair. Boil five more minutes and set pot aside to cool.
In another pot, pour in Spit/Tooth mix and bring to boil. Add Centaur Tail. Boil five more minutes.
While boiling Spit/Tooth mix, pour Tear/Horn mixture into one tall neck bottle. When done with Spit/Tooth mix, pour into same tall neck bottle while hot!
IMPORTANT! Add Dragon Tongue but cork bottle fast! Reaction to tongue will be quick and explosive. You must cork the bottle and keep it in place for dear life!
If successful in containing the explosive reaction, wait until the potion turns bright red. If potion turns orange, it has failed and must be disposed of. Average waiting time for one love potion is approximately three weeks. If mixed under full moon, waiting time is reduced to five days.