Balloon holder with eyelet

My wife asked me for "something" to tie an inflatable balloon without having to tie a knot so that the balloon can be deflated after the party and reused later. And at the same time, so that the balloons can be hung on a string. And here is the result. I first printed a model with a cone wall thickness of 1.5mm, but it felt too thin to me, although it works. Then I tried to model and print 1.68mm and 2.00mm, all printed from an older PETG spool and the 1.68mm model seems the best. The 3mf file contains 3 printing plates divided by thickness. There are 4 pieces on each plate, the plates are ready to print by objects, that means each holder is printed at once.Thoroughly degrease the print plate before printing. The print profile includes a setting for Generic PETG filament, where the plate temperature is set to 80°C to prevent the model from unsticking from plate during printing.