I picked mine up at a local sporting goods store. It comes with a bottle of active scrape scent in the package! H.S. Specialties also makes a mock scrape kit that you might be able to find at a local sporting goods store.

Any tree with limbs 5 feet off the ground or so will do, another good tip would be if you find a younger tree with low hanging branches to make the scrape under, make a fake rub on that very same tree, this will add a visual attractant for the deer as well. The H.S. Specialties kit includes orbital scent to apply to the tree when a fake rub is made!