[header] How to give a teenager's bedroom a vintage makeover [title] Clean up the room. [step] Designate which furniture and items are no longer wanted. You could sell these in a yard sale or donate them for someone else to enjoy. 
[substeps] Remove modern things that are no longer functional, wanted or in good condition. While you will still need some modern things, such as your music player or a docking station, you can change enough things in the room for it to look vintage.