Get your message across with a Funny Swimming Pool Sign. These humorous signs can help you keep your pool clean and safe, even when you're not around. A great addition to your pool area, these Funny Pool Signs make swimming safe, clean and fun. Encourage a smile with our Funny Pool Signs and Funny Spa Signs. All of our aluminum signs will last up to ten years (or more!), even outside. Perfect for a hotel, resort, community pool, school pool and even the private pool in your backyard.