Amazon has the Oxa Hydration Backpack w/ 2L Water Bladder (Blue or Black) for $26 - $8 off with coupon FG5QAGZQ = $18 with free shipping on $25+ or with Prime. List price: $40. Features made of high quality tear and water resistant nylon material, adjustable shoulder straps, a BPA-free 2-liter water bladder, and thermal insulation layer.
Has excellent Amazon Reviews.
Walmart has the Coleman 40-Quart Thermoelectric Cooler (Black/Silver, 3000004321) for $73 with free shipping. List price: $97. It cools to 40° below the surrounding temperature and holds up to 44 cans.
Amazon has the Huffy 24V 56" Large Electric Ride-On Trike (17987) for $99 with free free shipping. List price: $230. Features 24 volts powering a 250 watt motor capable of 12MPH and 200 lbs weight capacity.
Walmart has it for the same price.