This won't work...period.
If they are willing to hang laptops from their balls, and even get tattoos with ridiculous phrases, then Im not sure why they won't just fill out an email form. Some have even filled out fake "security" forms with over 100 silly questions. There are so many twists you can put on this method. Combine them with some other methods on BHW.
Here's a tip. Set up a gmail account for this and just post it on guestbooks that have the Name and Email field public. If the email is automatically made into a hyperlink the better. Wait 24 hours. You will have scammers in your email the next day.