MOB & MOG Gift Suggestions?!?!

Does anyone have any gift suggestions for MOB/MOG? Our parents aren't paying for our wedding, but they have each helped out in various ways so we'd like to recognize all they have done. I was thinking of something they could wear on the day of our wedding but they have both already purchased evening bags and jewelry!!

Does anyone have any unique suggestions?? Would like to be in the $100-150 range!

Thanks!