This would also be a cute dorm room idea. Also good for a gift for a girl leaving for college: package a set of fairy lights, clothspins, and small command adhesive hooks. Print this picture to include as a guide.
Hang a curtain rod draped with sheer curtains (or fabric) at headboard height, behind the bed, then add some white holiday lights behind the fabric and across the rod.--- maybe just a string of lights over the headboard :)
strawberries and some kind of chocolate that you can melt, such as chocolate chips. I also spread some Nutella on the bottom of the strawberries, but it was pretty subtle, so that part is completely optional. See full directions on: onelittleproject