My daughter went to a Unicorn party yesterday at Secret Garden Stables.
All the girls had a brillant time.
They are very well organised, provided invitation with map etc..., together with a meal order per kid. Thus on the day, each kid got a food box with their name on it during meal time.
Further, instead of needs to worry about dressing up, fairy dresses are provided on site.
Very efficient and hassle free.
As there is only 1 pony, while one kid is riding, the others will be dancing and kept entertained.
Guess the only downside is you need to pray for good weather because everything is outdoor.
Our host actually need to make a last minute change of date because of weather condition. But they seems to be very flexible for date change.