We are traveling out of state to our son's wedding. Several family members are attending as well. We are all staying at the same hotel. As the groom's parents; we would like to put in the hotel room of the other family guests a small welcome and thank you for coming gift. So, when they check in to the hotel and go to their room they will see a special gift from us. Any ideas on what "not so expensive" gift that could be? Thank you!