Informative

Wish List

What to bring, claimed by name so nothing arrives six times, with link previews on the items you paste.
What you would like people to bring. Each item has a title, a quantity, and optionally a link, whose preview image becomes the row's thumbnail. Guests claim items, one each.
Image
The wish list on the participant side with two items claimed.
You decide whether claimer names are shown or only the count. Be clear about what that switch is: it changes what the interface displays, not what the underlying records are. Right for a surprise party, wrong for anything you would call confidential.
The quantity is a guide rather than a gate. It is checked in the app but not enforced deeper down, because the cost of a stray extra claim is one duplicate bottle of wine.
A signed-out guest who taps claim goes through sign-up and comes back with the claim applied, so nobody loses the item they wanted to a login screen.