Cookie Decorating Party RSVP Website: Cookie Counts, a Station Cap, and an Icing Line
A cookie decorating party RSVP has to lock a blank cookie and a station before the bakery order closes, because a maybe does not hold a cookie.

A cookie decorating party breaks when the bakery boxed ninety-six plain cookies for twelve people and fifteen are holding bags, or when someone who said maybe arrives after the icing is colored and expects a set that was already placed at a station. Cookie counts, the seat each decorator gets, and the icing colors on the table are set before the first bag is filled. The bakery does not bake another tray because a friend decided to come after the order closed. A maybe does not hold a cookie.
You can create a cookie decorating party RSVP that fills the stations you can actually seat, records who cannot eat what is in the dough, and stops when those cookies are assigned.
Order the blanks, then stop inviting
This is not a cookie exchange. Nobody brings a tin, and nobody trades dozens at the end. You are buying undecorated sugar cookies and setting out icing. Call the bakery before you send the link. Write down the cookie count, the shapes, the day they need the order, and the last hour they will change it. If you have six stations with two seats each, that is twelve decorators. Eight cookies per person is ninety-six cookies. Those numbers are your cap.
A seat is one decorator and one set of eight cookies. Ask whether a guest who will not decorate can be in the room, and whether that person still takes a chair you need for a station. Pick one rule and write it on the page. If every chair is a decorating seat, say that a guest without a set should not sit at the table.
Ask the price per cookie, whether the bakery's dough contains wheat, egg, and dairy, and the cancel rule. A practical lock is Thursday at 10 a.m. for a Saturday at 2 p.m. party. After that hour you pay for ninety-six cookies even if two people drop. Print that rule on the page. Write the shapes, two rounds, two stars, two trees, and two plaques, so nobody expects a custom cutter.
Set a capacity limit on decorators, not on everyone who was invited. When the twelfth set is claimed, the form should say the party is full. A friend who might come still needs eight cookies and a seat at a station that has room for a rack. If the bakery has the order, they are not in this batch.
The icing line is the colors you mixed
Pick the colors before you send the link and put them on the page: six bags, already filled, no extra dyes brought from home. A closed list is how you keep a nut-free icing table from picking up a bottle you did not plan for. Each person confirms they will use the icing you set out. A request for a color that is not mixed should not be a form field. If you are not offering a second recipe, such as a vegan icing, say that. Do not promise a swap you did not buy ingredients for.
Ask the bakery, in writing, what is in the cookie and what the icing contains. Powdered sugar and meringue powder bring egg back into the icing even when the cookie list was already read. Put that list on the page. Then collect dietary restrictions and how serious they are, not a vague "allergies?" line. Someone who cannot eat wheat, egg, or dairy should not take a seat if the point of the seat is to eat the cookies. If you will allow them to decorate and take the cookies home for someone else, say that rule plainly. A shared kitchen that has had nuts is part of the same note, even when this recipe has none.
One household, one set, unless both people have seats
A parent and a child are not automatically two sets. Count each person in the household against the twelve seats. If both will decorate, they need two seats and sixteen cookies. If the child is under the age you set, a common line is 8, and they share the parent's seat and the pair gets one set of eight, not sixteen. Write that next to the question so a family of four does not arrive expecting thirty-two cookies from a ninety-six-cookie order.
Cookies have to lie flat while the icing sets. Ninety minutes on a rack is normal for this icing, and the party is two hours, with the last half hour for boxing. Someone who arrives forty minutes late does not get a full set, because the rack time runs out before their cookies are dry enough to stack. Say that.
The moment the bakery order is locked
The meeting point is the host's door. Put the host's phone on the page. A screenshot of the invite is not a station card. You match names to the twelve sets when the boxes come out of the car.
If you allow a guest, that person needs their own seat, their own dietary answer, and their own eight cookies. Track them as a separate yes. One form that says "my sister might decorate too" will blow the bakery count. Say that on the page.
After Thursday at 10 a.m., a late yes is a call about a cancellation, not a promise of another tray. Keep standbys off the bakery order and tell them they do not have a cookie until you write back. A maybe does not hold a cookie.
Export the list the morning you lock: attending or not, own seat or shared seat, dietary note and severity, party size, and phone. A cookie decorating RSVP is finished when every station has a named decorator, the ninety-six cookies match the sets you ordered, and a late guest knows they are not icing that afternoon.