We had also just begun last fall to have her mouth the cone, in preparation for picking it up and carrying it. All we did today was to remind her of what she had already learned - we had only done 3 or so brief sessions last year but she is a very quick learner. We worked on touching the cone, touching the cone by having to move a step or two to get to it, and then we worked some more on progressing towards picking up the cone. At the end of our session, I was clicking and rewarding her when she was mouthing the cone.
Lily would benefit from some challenges - she is a very smart horse and very capable - read my post from yesterday for her history. I think jumping should be part of whatever we do since she really loves to jump. I'm somewhat less interested in jumping myself, and Lily is hard to ride over jumps because she has a very round jump that is difficult to ride, so she'll need to do the jumping on her own. I have a vision that she can do something like dogs do in agility contests - going over obstacles, including jumps, on hand signals from me. I think we can do this using clicker; we'll have to see. For now we'll keep on working with our cone exercises, and once that's accomplished - I have no doubt she can learn it if only I can be clear enough in communicating what I want her to do - we'll move on to other exercises.
After a number of cone-mouthings, with clicks and treats attached, we stopped doing that and I bridled her and got on and rode for a few minutes. Today we went through the maze a few times, and also did some circles and changes of direction, all at the walk. Then we were done for the day - another successful Lily outing!