I'm having 1 bridesmaid, my OOT sister, for our less than 40 person wedding. A very close friend surprised me that she is planning to throw my shower with the help of her mom (my mentor), my mom, and my sister. Friend wants to invite people to the shower that are not invited to the wedding saying (I kid you not) "you'll get more gifts this way, and people will feel like they're involved in the wedding." I've told my mom and my sister that I do not want anyone who isn't invited to the wedding to be invited to the shower. Should I make myself clearer to friend or trust my sister and mom to handle any potential etiquette faux pas? TIA!