The Anniversary like the Wedding, Birthday, Baby Shower, House Warming, Charity Event, Fund Raiser, Engagement, Reunion and most other events is one of for the Hosts," What will we ask for ", and for the guests," What we will get ". Same deal, A guest list, a wish list, gift card icon and envelope icon. So people will choose a gift, gift card or envelope to drag next to their name. Just need to put some dialogue in for each page. Something like this, and most people will only be looking for a certain event, so probably won't look to close at the other events unless they have one of those coming up later.
For the next time you're having your Anniversary, invite your guests with us, to help you enjoy your milestone at https://agiftlist.com/