Back into Poundland and their Christmas decorations and they have a big bag of 100 balloons for £2. Looks like Unique 16" to me!! I've not blown one up yet to see but it feels/looks the same as Unique 16". 100 for £2. Joy is me.
Inflated to about 80%, the neck would stretch right out at maximum. Currently 18" around the middle; huge. I'm too chicken shit to blow it any more. #jobforsuzieDK