
I can't be certain but I bet that people that collect unicorn items can be made to cry easier than the general population. I think a great way to make them cry would be to slowly break off unicorn horns from their sculptures.
But you have to be subtle.
I would start with breaking one then waiting a week. Be patient.
Then, after you break a few more, start doing things with the horns. Like you might want to tape one of the horns to the groinage area. That will probably really freak them out because I bet that there's a legend saying that the unicorn horns are sacred. And if there is - you know they believe that legend.
What about laying one of the horns on the pillow next to them while they sleep like how they did with the horse in the Godfather? Yeah that's a good one too.
Oh I know. What about when they cry, you say, "Now now. It's OK, here's a tissue." Little do they know that you've taped a broken unicorn horn inside of the tissue. Can you imagine the hysterics that THAT will set off? I can.
What other ways can you think of to torture unicorn collectors? Go ahead - jot some ideas down on a piece of paper then pick the best and leave it in the comments area.
Good luck.