If you're gifted with the ability to paint freehand designs or you simply have a brave and creative spirit, paint any design of your choosing on your toilet seat and cover. Use inexpensive craft paints to paint a flowering vine on the seat with a larger flower in the center of the cover. Paint an ocean scene with colorful tropical fish. Consider painting an old-fashioned outhouse on the cover, with wildflowers and grasses on the seat. The design possibilities are limited only by your imagination.
If you plan to decorate the inside of the toilet seat cover, consider how it will look when the seat is lifted up, as the seat will form a sort of frame around the design.
Stenciling is a great way to achieve a hand-painted look without having to paint a freehand design. These plastic, cut-out shapes are offered in a huge variety of styles at craft stores, online and at paint and decorating stores. Stencils can be used to make objects as well as lettering.
Two of the most common mistakes made in the stencil process are overloading your brush with paint and allowing the stencil to shift when you paint. Both mistakes will result in a sloppy, blurry image. Remove excess paint on your brush by lightly wiping it on a piece of paper towel before you begin painting your stencil. If your stencil shifts while you are painting, use additional tape to secure it in place.
Applying sticker-like decals is a very quick and easy way to add a design to your toilet seat or cover. Just peel the backing off the decal and stick it into place. Be sure the toilet seat is clean and dry before applying. If an air bubble gets trapped under the decal, poke the bump with a pin to let the air out and then smooth out the decal.
Regardless of how you choose to decorate your toilet seat, it must be sealed so it can stand up to moisture. After the design you put on your toilet seat is completely dry or set, apply a clear waterproof finish to the entire seat and cover. A water-based polyurethane or poly/acrylic topcoat is durable and easy to work with. Apply at least two coats, allowing each coat to dry thoroughly between applications.