I found a used copy of Trickonometry that has some ideas. Sometimes it's just your imagination. Currently working on smiles for treats, they learned that fairly rapidly. Also shaking hands (which could be developed into more things, I wonder about training for Spanish Walk but that would be pretty advanced).
For toys this is the hands-down best one we've found:
Stuff it with a few alfalfa or carrot flavored horse treats, and a bunch of hay to slow down the payday. Legend in particular LOVES it. Google "Amazing Graze" and you will find it.