I'm not sure if your range would permit this, or if you have time since you're going out tomorrow morning, but one thing I found to be a real "blast"
is a cheapo radio controlled car.
I bought one for around $25. at Wally World, mounted a stiff, thin wire about 4 feet long upright on it, put an alligator clip on the top, and clipped balloons to it.
It makes for great fun and great training on moving targets, but it you try this, make sure you get a car with a wide enough wheel base that it won't tip over on turns.