K-9 trainer Pat Nolan has been using his version of this for years and now we have a commercial version with heavy weight non-tipping bases. This set of four ships the same day you place your order. We highly recommend that you attend one of Pat Nolan's K-9 training seminars.
Video below is of Pat Nolan's system for odor imprinting
Video below from West Michigan K9 working a new puppy