Charming, but single

So, say you were shopping for your younger (24) brother's girlfriend and (probable) future fiancée. And you need a present that says, "I'm sorry my brother is a dirty hippie who would rather wear Birkenstocks and an old Phish T-shirt than get dressed up and shave and take you out to dinner, but I really do like you and hope that you marry him some day because even though you are very different people, you complement each other very well and he is always so happy to be with you and we all know that he is a very sweet man and will be a good father one day and I swear I am going to be very happy on the INSIDE when you tie the knot, even though on the OUTSIDE I'll be sitting in the corner of the reception mumbling into a champagne glass about being an Old Maid without a date to my own little brother's wedding. Oh, also, Merry Christmas."

Note: I have previously given her a gift basket of relaxation and beauty products and a scent diffuser ( like this one, but more expensive) and various members of my family throughout the years have gifted many picture frames and journals and candle sets.

Also, I've got a long shopping list. Less than $50. (And $50 could be pushing it.)