Parked outside of P.S. 295 this Saturday from 11 am to 2 pm will be every vehicle the Tonka-obsessed would like to play with in real-life: a fire engine, ambulance, police car, dump truck, Bookmobile, BioBus, Airstream trailer, vintage trucks, the Truck Farm, will all be at the ready for curious kids to climb in and explore, with food trucks including The Treats Truck, Frites & Meats and Country Boys tacos at the ready when hunger strikes. Admission for Touch-A-Truck Brooklyn is free for 2 and unders, and $5 for everyone else; all proceeds benefits the arts program at P.S. 295. 18th St. between 6th and 7th Aves., Park Slope, R to Prospect Ave; F to 15th St/Prospect Park