Last year I really wanted a photo of Griffin holding a bell and then Luna ringing the bell with her nose. Easy enough, and it would make an adorable card, right?
Training needed: Griffin to hold the bell. Luna to target the bell with her nose. They have both behaviors.
It proved harder, as Luna didn't want to get that close to Griffin, especially while he was all serious holding the bell. It was an invasion of personal space. We gave up.
This year I tried again, we got a little better results. And with 2 training sessions a year, maybe we'll be able to do it in a few years.
This is not "good training practices". This is a last minute what-can-we-get, can-we-cheat-to-get-the-photo.