I used to sleep with my husband's used T-shirt every time he goes out of town because i would miss him desperately and his SCENT made me feel like he was with me.

Yeah, send her a clean sweaty shirt, but be very sure you've used your shirt at least twice where she would be able to really smell your natural clean body odor.I love it when i smell my husband's sweaty body after jogging.It is very intoxicating.;)