seeking ideas for my sister's bridal shower favor

[shardaunei.livejournal.com]

Hi, my cousin and I are throwing a bridal shower for my sister (oh the joy of being maids of horror, er, honor), and we need ideas for a the party favor.
Here are the pictures of what the favor looks like so far:






A close-up of the sachet




We are wondering what else do we put inside besides sea salt. Right now, we have star papers inside the sachet, but it doesn't seem to fit with the theme of spa/bathroom.




Please and thank you. Looking forward to all your wonderful ideas.