Oh she's gorgeous!
I found scent discrim heaps of fun to train, my dog is not a natural retriever by any means (although I had taught her to retrieve a dumbell) so I found half the challenge was getting her excited about picking up the metal articles. Wood was easy as she already knew how to do that, but she wasn't keen on the feel of the metal at all. However, she is pretty keen to learn, and within a week I had her working reliably on a full set of metal and wooden articles (I have been too lazy to train leather properly).
I also find training little exercises like backend awareness stuff fun too, and especially useful if you want to do obedience/rally.