dont be too creepy. take "samples" of his hair over time and some other things that belong to him. when you have enough hair, make a dolly out of it and attach googly eyes to it. dress it with scraps of his clothing that you have cut off. put it somewhere he will find it attached to a note asking him to hang out with his number one fan
hey do you want to hangout at my house (maybe invite a couple other friends, like on eor two, but when he gets there say the didn't show or something)?