1. Treat it as an expensive hobby at first. You might turn profit, but probably not for a while. Know this going in before; if you find out weeks into your project, you'll likely become demoralized and quit.
2. Do
not, under
any circumstances, try and recruit models by pretending it's not fetish content. You can tell them it's not nude, you can tell them they won't need to get naked, but they need to understand what they're doing. None of this "It's just a silly little thing I do for no specific reason" thing people seem convinced works. In the offchance it does at first, people will eventually wise up to what you're shooting and feel violated that they were effectively tricked into modeling for beat-off videos. Many, many people will willing make foot and tickle fetish videos if you're just not a total freak about it. If you're not confident in your ability to pitch that, brush up on your salesmanship. Initial fumbling is going to be nothing compared to the trouble you'll find yourself when confronted with people who know what you're up to as you're lying about "some silly art thing" or "a reflexology project for school".
3. Your initial instincts are going to say "What do you guys want to see", so you can film what will be popular. Don't actually do this. Everyone will ask you for the same things; Girls Next Door, "REAL reactions!", sometimes they're going wish for more restrictive bondage you might not necessarily know how to do yet. You're now going into filming with a laundry list of other peoples ideas instead of things you think will look good, or what you are able to pull off. Not unlike point #1, if you're going in with a To Do list and then can't do it, you've demoralized yourself. Don't add unnecessary stress to a project you're not even familiar with outside of being a viewer. Work within your abilities at first until you get a feel for what you're doing and then branch out.
4. Equipment matters less and less these days. Whereas "filming a video on your phone" was once a genuine criticism, if you have an even halfway modern smartphone, you can probably pull genuinely quality videos off of it. One thing you are going to want to invest in, though, is lights. Even the best quality, $1000+ iPhone can't record worth a shit if the room is dark. If you're going to spend a dime on equipment for this, I'd actually point you towards studio lighting before any high quality camera. A decade old DSLR or handycam is going to work leagues better with proper lighting than a top tier cinema camera can with bad or no lighting. At
$200 something like this might be more than you were expecting to pay for a "non essential" piece of tickle video equipment starting off. I'd argue something like that is probably the
most important thing to have at your disposal, outside of any form of video recording to begin with.
5. Just don't be a fucking freak about it. This might be a retread of #2, but it's a big one. You're going to find a lot of people are more willing to shoot a tickle video than you initially expected... if you're not a fucking weirdo about it.