The VetaHumanz program was developed by Purdue University College of Veterinary Medicine to facilitate veterinary teams who would like to help increase diversity in the profession.
The League of VetaHumanz provides online training and certification for veterinarians and veterinary technicians, and provides lesson plans, curricula and books. They are supported by a Science Education Partnership Award from the National Institute of Health, and are in the process of building chapters nationwide.
The curricula are designed to meet specific learning objectives within elementary school curricula, so that they don't need to be delivered as a career-day type "extra", but can actually help teachers to meet their core objectives. The VetaHumanz lesson materials are designed to be easily reproduced on a photocopier, although there is plenty of opportunity to add props of your own as an upgrade.