I gave out stethoscopes to friends who got into nursing school and PA schools. Beyond that, medical themed gifts lose their charm and symbolism, just like giving a suture kit or a speculum would. A generous gift card to Costco or something along those lines communicate appreciation. A mention that she is welcome to come work with you guys would probably give her a shot in the arm in this environment, although I’d never personally risk ruining a good relationship by adding a work relationship to any friendship. If you want to communicate to her that you want to help her career, the best token is an offer to help her get started in her first job somewhere. No need to overdo a gift since it’s the thought that counts, and you really can’t repay good performance adequately without a really nice paycheck. Maybe you went above and beyond with your compensation while she worked for you. In any event, keeping it light and simply communicating utmost respect verbally is the most poignant thing I’ve ever been given. It never got old hearing things like “you are the best student I’ve ever had” or “when you start looking for work, I’ll start making phone calls for you.”