Yes i love mock scrapes. Here is what i do...
I buy one of these drippers/active scrape packages from cabelas yearly. All you do is tie it on a branch thats sticking out, just high enough for deer to smell it when streching there neck out, and clear the ground below of leaves. When the temp changes it slowly drips out a drop of urine here and there for a cupple weekes.
I have had many deer come in to check it, and infact the one i put up last week in my spot has a hoof mark right in it.