For 30 years, the "Billy" library from Ikea has established itself in our interiors. Different sizes: high, long, small or large and different colors: black, white, oak or birch veneer, it is a "must have" for decoration. On the occasion of this anniversary, find each month a decorative idea to personalize it. This month, a "Billy" 106 high by 80 cm wide, is dressed in reflections. Level : Way Completion time (excluding drying time): 3 h Indicative cost : 49 euros Necessary material : - "Billy" Ikea bookcase, three shelves, in oak veneer, dimensions of 106 x 80 x 28 cm = 29 euros - Adhesive mirror sheet = 10.40 euros - Adhesive aluminum foil: 1 m = 9.60 euros - Glue in tube - news: 739781 Cutter - Scraps of wallpaper Step 1: Create a mirror effect on the bottom of the Billy library - Remove the bottom of the "Billy" - Double-sided tape on the edges of the bottom and remove the protective film on the visible part - Cut the mirror sheet to the dimensions of the bottom: 105 x 79 cm - Apply the mirror sheet on the double face taking care to properly adjust it to the edges - Replace the bottom of the "Billy". The shiny side of the mirror sheet must be the visible part! - Finally nail the bottom of the "Billy" Step 2: Customize the library - Take the measurements of one of the shelves in the library and provide two centimeters of margin - Cut the adhesive aluminum foil to the dimensions of these - Remove the protective film from the adhesive paper - Apply the adhesive aluminum foil on the shelf - Fold down the edges on the two lengths of the shelf - Remove the excess widths using an actu: 739781 cutter for a clean result - Proceed in the same way for the other two shelves - Replace the shelves in the library - Stick a strip of wallpaper in the center of each shelf. No need to buy a roll, you can use scraps of old wallpaper! Trick : Play with the reflections of a lamp or bright LEDs for an even more decorative effect.