I have worked as a vet tech for nearly ten years while going to school. Working towards either human medicine or animal medicine. The decision has not been made quite yet on which direction I wish to go in. I have studied different forms of martial arts for about the same length of time. I used to utilize postcrossing as a form of stress relief until my ex-husband told me it was a waste of time and money and made me stop. Now I am back and hoping I can use it like this again. I literally will be happy receiving any type of postcard in the mail, so get creative or don't.
Though, now I "waste" more money. To help keep my hands-on creativity alive since it has lacked severely since high school. I have taken to utilizing wax sealing and writing a little letter to my addresses with a blank postcard for the receiver's use. Takes about 30-45 minutes to do a single one, but hey it's more fun that way.
I do not have a preference for cards, other than make them unique. Yes, I work in veterinary medicine, doesn't mean all I want is animal-related cards. I'm eclectic in many ways so send me cards that are your favorites or something you think is one of those oddball cards you cannot just send out randomly to people cause they'll think it's weird. I'll most likely enjoy it. Remember, veterinary medicine is nitty-gritty and can be downright gross (cannot say the number of times I've been puked, pooped, urinated, and anal gland on among other things). Your card cannot make me grossed out, freaked out, or even horrified. I've seen much worse. In and outside of the animal body.