Garden waterfalls are available in various styles - ranging from small wall-mountable fountains to accent your patio or deck to large multi-tiered waterfall fountains complete with opulent Roman sculptures. Popular waterfalls for your pool or garden pond include giant rock replica waterfalls made of fiberglass. You can also purchase pump and fountain kits that will turn your existing bird bath into a waterfall. The motion of constantly moving water will provide lingering birds with an open drinking water source when natural sources are frozen over during the winter. Garden waterfalls come with a submersible pump and tubing kit that plugs into most 110-volt electrical outlets. Prices for simple fiberglass waterfalls start at $200, and can cost up to several thousand of dollars for more extravagant multi-tiered or faux rock waterfalls.