Here is my tutorial on how to make a clip-on ponytail. This method looks best for either stubbed wigs or short wigs that end near the natural hairline. If you have any questions or need me to clarify something, post a comment or send me a note and I'll be happy to get back to you.
Here is what the inside of the clip looks like:
[link]And the top:
[link]Pretty much exactly like you'll find in stores:
[link]Here are some helpful tutorials from other people that you may be able to use:
[link] - Katie Bair's Wig Straightening Tutorial
[link] - Kukkii's Loose Wefts Tutorial
[link] - Kukkii's High Ponytail Tutorial
[link] - Katie Bair's Stubbing Tutorial
Thanks