The thing isn't about a spider, its about taking a chicks guard down. So really it could be anything that will have a chick really change her focus from..."I hope none of these nikkas try to talk to me"...to "oh shyt, hahaha. You got me."
I haven't tried this but on SOHH a dude was like he would go up to a girl in the club and say "excuse me, do you have a tissue, you have something hangin from your nose"
The chick will instantly feel vulnerable/embarrassed and try to get it off. Dude would then say, Im just playing

and proceed to introduce himself.
If you take a girls guard down and make her laugh...that's ball game. It would work on you too. If you are single.