Free wedding day flypast. Thanks and WHO??

Was at a wedding reception Saturday. Not your everyday wedding day reception of course. A mass champagne picnic in the most beautiful Cardingmill Valley, Church Stretton, Shroppy. Was an informal affair. Still in our finery, shiny shoes were swapped for walking boots and wellies!! I was saying to my best mate, (who was the groom and a man who has Avgas running through his veins) that I wish I had organised something, even though he wanted nothing but friendship and smiles as presents. I said, yeah, but a flypast by a few radial beasties would have gone down a treat with us? (not the new missus, but us) We laughed. Then…… BRmmmRrRmmmRRmmmm. Over the valley, in formation, (what I think were) 3 Yaks? Aerobatics I guess. Red and White. Well….. no-one else got the joke!! whomever they were….. Thanks. You made a great day even that more special for two dyed in the wool aviation mates. To use an over-used phrase….. “you had to be there!!!”
Cheers if you can tell us who it was…… would be good fer me funeral that would!!
Ivan