When it comes to paying for baby shower decorations, it's customary for the host or hosts of the baby shower to cover these expenses. The responsibility usually falls on close friends or family members who are organizing and hosting the event. However, it's not uncommon for guests or other attendees to offer their assistance with decorating or contributing financially to help cover these costs. Ultimately, it's important for everyone involved to communicate openly about expectations and budgeting in order to ensure a successful and enjoyable celebration for all involved.