Aww! Medicine sucks. The times I had two of my birds on Baytril, I had to "trick" them by putting a bit on some millet but they hate very juicy or wet things, so of course a liquid antibiotic is the last thing they want - sticky too. They learned quickly, but those were some trying two week periods. They wouldn't dare let me handle them - sheer unhappiness!
Hmm, the stuff I'm looking into getting now is mostly from this Amazon store, their small sized toys:
Amazon.ca: Super Bird Creations: Pet Supplies
I have a few of their things already, but my pending cart has 8-10 more I'm on the fence about. I have pretty much all the size-appropriate plastic foraging toys there are (and some of the slightly-too-big-but-still-manageable ones) and those are by far the favourites because food! Other than that, soft woods, twine balls, and bells are my go-tos. My birds never try to use wood for nesting, just paper. And bells are the mortal enemy and best friend so it's always entertaining to see which way they feel like swinging at any particular moment.