I think it's really weird, I honestly do. But I'd probably pay up and store it under Strange Happenings, and hope they had some real, undisclosed, and very worthy need for this handout. But then I'm a notorious sucker.
Children's parties! a minefield, eh? I am so glad mine are no longer of that age. I held a party once and a very strange friend of mine with the most precious FB you have ever seen stayed the whole time, breastfed her equally strange but utterly lovely and very bright 5-year old in front of everyone, and then insisted the PFB needed a nap, so she set up a 'quiet corner' and soon at least half the little girls insisted they were also tired and needed naps and joined her for a good long sleep. Meanwhile, tiptoeing round the sleepers, I continued determinedly, bringing the cake in, organising games etc, conscious that the whole thing had been one almighty flop.