Well, here I am telling of how I repink my ponies. I'm not artistic or even crafty so it's a bit strange telling of "my" technique, lol!
This is what you'll need:
1. Liquid RIT DYE, ROSE COLOR
Comes in a white bottle and is a liquid.
2. Bowl, like a cereal bowl size
3. Small spoon
5. Running water hot and cold
6. Nail polish remover (Only in case of emergency you can use this to try to get the dye off the actual pony. Be careful around eyes/symbols)
Take a freshly shampooed and washed pony, wet hair. Pour about the size of a nickel or 2 green peas in the bowl of Rit Dye (shake well), add HOT water almost to the top and stir.
Holding the pony upside down, start with the mane since it's harder to do and the tail will be easy to match up. Dip the mane in the bowl doing the lower section first and work your way up to the ear area. Be careful not to let your pony sit in the dye. Just dip as far as you can, being careful not to touch the actual pony. I usually rinse the pony at this stage with cold water.
Now that you have dipped the mane for about 5 to 6 seconds and got a light pink shade, take the spoon and start to spoon the dye mixture on the roots. Have your Q-tips ready. You can use hot water and Q-tips to keep dye off the plastic if needed. I usually do this about 20 spoonfuls for the mane.
Then once it seems to have matched up, rinse the pony in cold water and check out your work. Sometimes when I'm spooning I try not to get the dye on the ends of the pony by folding/holding them up with my fingers and letting the dye run off the top half of the mane.
Now for the tail. This is too easy. Dip the tail into the dye being careful to get it just to the end of the roots. I have found that the dye doesn't effect the pony's color if rinsed right away! I sometimes dip the tail and then rinse right away and then repeat my process until it matches the mane.
It's easy to get a match. Just hold it in the bowl for the same amount of time, about 6 seconds. If you have only added a hint of dye to the hot water then you can kinda play around with the shade. Don't use too much Rit Dye like I did. I got the Taf Yum Yum's hair too pink and then there was no going back. She turned out really pretty though.
I'll add pictures but explain about them tomorrow. I'm pooped tonight but as you can see there are some before and afters of two Taf Yum Yum's.
There is also another method I learned of on the TP. In some pics you'll see dark, dark pink and that is Kool Aid NOT Rit Dye!!! This just gets the hair slightly pink. It's messy and you have to keep wiping any spots off the pony but it works too!
Edit: KOOL AID METHOD: This method only gets the hair slightly pink but I suppose if you left it on longer it will eventually get dark enough. I used Cherry flavor Kool Aid.
What you need:
1. One packet of red flavor Kool Aid like Cherry/Strawberry.
2. Q-tips and Nail polish remover
3. Conditioner-I used Pantene
4. small bowl
5. small spoon
Mix about half the packet of Kool Aid with conditioner (about 3 tablespoons) in the bowl. Keep stirring. It takes forever for the Kool Aid powder to get absorbed into the conditioner--about 10 minutes. You don't have to stir the whole time. You can stir it and let it sit a few minutes.
I used my fingers (no gloves so I had better control) to pat and rub the mixture into the pony's hair. You have to really rub it in to get it even. It gets very messy and you don't want it on the pony, so use your Q-tip with water to wipe any excess--nail polish remover if it looks like it will stain.
Be careful when working around the roots but don't be afraid to get it on thick. I let Taf Yum Yum sit with the mixture on about 5 minutes and then I rinsed in cold water. It was too light so I did the whole process again and let it sit about 10 minutes but I wanted it darker so switched to the Rit Dye. I did Sunspot who had completely white hair and her hair got a little pink with the Kool Aid mixture on for about 20 minutes but in the end I used Rit Dye method. Her hair turned out very light. I only dipped her about 2 or 3 seconds and of course spooned it on the mane. I'll add pics in about an hour.
Good luck and please let me know how it goes.