Yeah, I'm down with some others; why would that be a secret?
My personal opinion: as far as piercings go, really just standard ears and belly button rings are cute. Tattoos are a much tougher subject. Obviously this will depend strongly on where it is. I can do without most tattoos, including tramp stamps, but two places I view as guilty pleasures are hip/side (idk exactly what to call them. The sort running from around the lower section of a side over the butt/hip area and to mid/lower thigh, or even down the side of the leg) and ankle/upper foot tattoos.
I call tattoos guilty pleasures because while they can be very fine, I have a somewhat dim view of tattoos. In my mind it requires a certain rashness and lack of judgment and foresight to permanently mark one's self like that, with the innumerable downsides and virtually non-existent number of upsides. So the fact that I find certain tattoos on lasses to be super-duper cute clashes with the previously mentioned dim view of them and the fact that a chick having a tattoo indicates that she has a somewhat higher chance of being trashy. I'm absolutely not saying that having a tattoo would make a person trashy, I'm saying that trashy people simply happen to be more likely to get tattoos and therefore it's more likely that a person with a tattoo would be a trashy person. Regardless of how anyone feels about tattoos I think we can all agree on that, right?
Belly button rings are slightly similar in that they do tend to be worn by skankier chicks somewhat more often, most likely because most girls don't have people seeing their soft, bare tummehs all that often (any time you're dealing with something cosmetic that's normally covered by clothing, you're inevitably going to attract the kind of people who have people seeing them without clothing often enough that it matters), but other than that they're A-ok.
Note that I have no problems with skanky chicks or any sorts of anyones for that matter, I'm just speaking purely from the perspective of romantic interest. I have no room to judge anyone.
As to stretched ears...do we mean those weird ass god only knows whats that people sometimes walk around with flapping all over the place, the ones that look like they stuck oddly shaped tire rims in their ears and look absolutely absurd? Cause those look ridiculous on anyone, any time, regardless of gender or age. I can't say I've seen any cute girls that I can recall who have ever done that to themselves, it's always sorta gross-ish bizarre looking ones and guys who look like...well, I'll just leave it there.
But yeah, no secrets here. People usually like talking about what they find attractive, which is why I'm always puzzled as to why there's so much contention over what women like; why not just ask them? From what I've seen they're more than happy to tell you exactly what they're in to...although I guess that would require talking to females, and most guys who have romantic issues wouldn't have them if they were willing to do that...