Can you get a hickey on your neck?

i slept with a necklace on last night and i woke up with some kind of a rash on my neck :p

:I just got one, I seriously went to Big5, bought 2 pairs of MMA gloves, and sparred with my huge buff friend and let him hit me a bunch, so I could say it's a bruise. Also, paintballing works VERY well.: