If your partner is going away for a few days, tell her that you are worried about her so you have organized a bodyguard to look after her. Then give her a small teddy bear.
IDEA # 2
Buy a packet of glow in the dark stars and stick the stars on the roof above your bed to spell out a message such as "I Love You" When the lights go down, your message will be revealed!
IDEA # 3
On a special occasion, buy your partner eleven real red roses and one artificial red rose. Place the artificial rose in the center of the bouquet.