First: Give practical things, such as blankets, pillows, and pajamas. You can buy things of good quality at this price, and I believe the newlyweds will like them.
Second: Give decorations, preferably crystal gifts. The newlyweds' rooms are decorated with festive atmosphere, and a shiny thing will make the room more elegant. For example, a large crystal diamond ring (of course it is a replica), as big as a fist, is very eye-catching when placed at home. A crystal music box is also good. You can put photos of the newlyweds on the surface and choose beautiful music.