Most anglers use outboard-cowling covers while their boats are stored, but a new breed of cover stays put all the time. Vented splash covers fend off sun, spray, salt, blood, chunks of bait, bird droppings, errant sinkers, flying lures and anything else that can damage the finish or decals. These types of covers are common in Australia but also gaining popularity here. Suzuki Marine offers splash covers (about $255 for a 300 hp engine) made of breathable yet waterproof marine-grade fabric in colors to match the engine. A soft lining will not scuff or damage the cowling when installed. Special vents let in air for peak engine performance. You can hose off the covers or put them in a washing machine.