Hi Helen! How are you knotting them? You should blow up the ballon to your desired size but then squeeze them so they’re round and knot them when they are a round ball. If you only blow them halfway and knot them at the end of the balloon then it will be deflated since there’s still a lot of the ballon left. Hope this makes sense! You’ll have longer knotted “tails” but that can be trimmed and tucked within the wire.

Hi! I ordered 5-inch balloons, but when I try to blow them up halfway, they’re oblong-shaped because there isn’t enough air, and not like your pictures at all. Not sure what I’m doing wrong! :(

Hi! It’s smoothed and chilled buttercream as the base. Hope this helps!