http://www.performanceorthopedics.com/files/ProcProtocols/AnkleRehab.pdf Ankle strengthening doesn't require an OT and it isn't expensive. A wall, a towel, perhaps a theraband and those cost less than $10.
Just five minutes a day and remembering to do it. I wish someone had given me this before I sprained my ankle so many times. Not to discount the value of OTs and PTs, but really so much of what happens in sessions can be done be done at home if you simply focus on it. Half of the value of therapy is just that it makes people stick with it better. The fancy equipment is great and fun, but really for less than $50 you can get a therapy ball, bands, free weights, etc.
For younger kids for sensory activities there is The Out of Sync Child has Fun.
