Links to clips posted
Some of my favorites are:
A clip where 3 Italian girls take turns tickling each other's feet in a public park, all are ticklish, and to see people in the background while this is going on, whew! It's a large clip, and can be found here:
http://celine.homeip.net/ click on video clips and then on MAR24; it is the only clip in that folder
There is a great clip of a girl named Gina stretched out on the floor while her female ler lightly tickles her with a large feather for a couple seconds and then proceeds to tell how her how bad she is gonna tickle her feet and then does so for about 3 minutes. She then spends a minute or so tickling her sides with her toes and finishes by tickling her extremely sensitive armpits. You can find that one here:
http://www.tickletheater.com/showthread.php?t=3672
As far as mainstream, I don't usually care for mainstream, especially ones in TV shows or movies, because these people are, after all, actors, and they only last for 2 or 3 seconds, anyway. By far, the best mainstream clip I've ever seen is from QVC UK. In the thread, the clip is broken into two parts in one post; in another it's all one clip. The tickling comes at the beginning of the clip, so you may want to only download the first part. I downloaded the clip in its entirety because I didn't know where the tickling would be. Anyway, it's a clip where a product rep is applying foot cream to a model and at the very beginning of the clip, she says "...forgot she had such ticklish feet." She continues massaging the product on the foot while describing the ingredients when she notices the model squirming, and says, "very ticklish feet...verrry ticklish feet. I wonder what would happen if I did this?" and then lightly rakes her nails, not once but FOUR times along the model's sole. Amazing. You can find that treasure here:
http://www.tickletheater.com/showthread.php?t=10686&page=1&pp=10
There is a lot of banter in that thread, so the two-part clip is on page 2, the whole clip on page 3. Hope these links work, and enjoy if you haven't seen these before.