The bow is finished. The tag matches the invitation. Then the lid meets the frosting, and the favor that looked ready needs to be unpacked.
Start with one complete package before planning a table full of them. The filled box, closed top, handle, and tag all occupy space. Testing those pieces together gives you a practical unit to repeat—and a better basis for deciding how much display room the favors will need.
Close one box around the actual favor
Measure the finished cupcake at its widest and tallest points, including the wrapper and any decoration. A plain cake and the same cake with a tall swirl are different packing problems. The box's outside dimensions cannot tell you the exact clearance above the frosting or the fit of an insert.
The individual brown window cupcake boxes is listed at 3.7 by 3.7 by 4.5 inches and comes in a 200-piece pack. It has a clear front window and an integrated paperboard handle. Assemble one sample completely, seat the insert supplied with your order, and close the top without pressing against the cake. Keep food storage and handling consistent with the baker's instructions; a display box does not establish shelf life.
Look through the window after closing. Is the favor centered? Does its decoration touch the film? Can the top remain closed without help from a ribbon? If the answers are uncertain, change the cake height or packaging before producing the whole batch.

Styled image for editorial reference only. Actual product color, material, size, texture, and details may vary.
Count the space a hand needs
A favor table is not a storage shelf. Someone has to take one package without lifting the neighboring two.
Place four finished samples in a row and pick up each one by its intended grip, while supporting the base as needed. Leave space between the handles and keep decorations from overlapping the adjacent package. If the tags hide the windows, move them to the side instead of making the row wider and wider.
Four 3.7-inch boxes already occupy 14.8 inches before you add any gaps. Use the actual assembled samples to work out the final row width. Handle clearance, tag placement, and the edges of a display tray can all change that number. A tight fit on paper can feel awkward in use.
Keep the first row reachable and replenish it from a nearby reserve. If you browse Serving & Displays for a stand or tray, compare its usable surface with the finished packages. Tall tiers are optional; a single clear row can make both the contents and the pickup point easy to understand.

Styled image for editorial reference only. Actual product color, material, size, texture, and details may vary.
Use ribbon where it can be untied
The tag should add a name or a short thank-you without becoming another closure to solve. Attach it where it will not obstruct the handle or cover the favor's window. Keep any decoration on the outside of the package, away from the food.
The 3/8-inch gray satin ribbon is 3/8 inch wide and comes on a 30-yard roll. Its narrow width makes it a candidate for a small tag loop or restrained bow. Test the actual knot with the tag you plan to use; the hole size and paper thickness matter as much as the ribbon width.
Make one bow. Untie it.
If it takes fingernails and several attempts, simplify the knot. If the tails trail across neighboring favors, shorten the sample before cutting the rest. Turn the ribbon so its satin face sits where you want the light to catch it, then accept a little variation between hand-tied bows.

Styled image for editorial reference only. Actual product color, material, size, texture, and details may vary.
Cut to the tested length, then build the row
Measure the piece used for your successful sample, including its tails. For planning, a 30-yard roll is 1,080 inches: at 18 inches per favor, that is 60 pieces before allowance for test bows, uneven cuts, or mistakes. Eighteen inches is an example, not a required length. Use your own finished sample to calculate the batch.
A large box pack and one ribbon roll may serve very different quantities. Count the event's favors first, then compare packaging quantities and ribbon use. There is no reason to turn a small gathering into a two-hundred-piece project simply because the boxes are sold that way.

Styled image for editorial reference only. Actual product color, material, size, texture, and details may vary.
Keep an assembled sample beside the work area while you finish the remaining tags. Group the completed favors by what the guest needs to know—such as recipient or flavor—and keep any necessary ingredient information accurate and readable. A decorative tag should not substitute for that information.
For other colors or paper details, use Gift Wrap, Cards & Invitations after the package works. The final display can be quiet: clear windows facing forward, handles free, and one completed favor ready to leave the table without disturbing the rest. That is the moment the packaging has done its job.