This store should satisfy your needs if you like Asian girls.
http://www.clips4sale.com/studio/1935
You have to go farther back to find the girls who actually look good. My favorite is a video called "Please Stop! I'm not joking!" and another called "Tickle Torture Tiny Asian". I might be off on that second one. Just search for Ann and go through the results. I think you'll be pleased. All in all, she gets 30 minutes of intense torture throughout the two videos with almost zero breaks, despite the fact that she's begging for it to stop early on and she clearly can't handle it. Also, search for Apple. She's tickled in a red bra and panties. She's tickled for an extended period of time and spends the entire time with sobbing. I guess she didn't really hate it that much though, since she came back--multiple times. It's really great if you like rib tickling, since that's where the ler spends more than 50% of his time (and he's really rough with the girls too).
On realtickling (the old one, not the new one), there was a trio of clips starring Silvia Day, one of my favorite lees. In the last 30 seconds of the last clip, she is being tickled so hard that sweat is pouring from her face and so are the tears. She is clearly at the end of her rope, but unfortunately TIB ended the clip there (probably for that reason). The preview clip should be in the video section, so search for her.
If you like black girls, go to Tickle Horror and search for Lea (or was it Leah). The latest one with her is especially awesome, simply because Lea herself is actually prettier in that clip than she is in any other appearance. The clip in question has her sitting down in a chair with her arms tied overhead being tickled by two very sadistic girls. But she's also in another gazillion clips on that site.
I don't know so I really can't say, but if anyone can share any information on the quality of tickling on a clips4sale store called Sick and Twisted Clips, please let us know. It looks like it could have potential, seeing as how the ler is a scary mannish looking woman-thing and I love the idea of scary mannish looking woman-things tickling a cute innocent young girl.