Would look really cool with really old recipe books in a farmhouse kitchen. DIY knife block - I just glued together the covers of some interesting books i found at the thrift store and secured them with twine. the tight pages of the books hold the knives
With its adjustable shelves, the IKEA Mandal headboard is already fairly adaptable, but have you thought of using it in ways other than a headboard? These folks did; perhaps it will inspire you to look at the Mandal with new eyes of possibility.