Crown molding ... to this DIY undertaking than meets the eye, and simple mistakes -- like not properly preparing the boards ...

Got an empty wall ... molding tape the same color as the wall and then decorate the interior of each arch with a framed photo ...

This crown molding majorly transformed my bedroom, for one, and it looks pretty convincing, if you ask me. Made to resemble ...

Don't let that discourage you from decorating a large and empty wall with something big, though — not when you can DIY museum ...

Professional small-batch injection molding can be pretty expensive, and buying a manual machine can cost quite a bit. Of course, there are a number of DIY injection molding projects to choose from ...