Could it be whipped cream? Recently celebrated the ?? aniversary of my 21st birthday and it happened to coincide with a scout pack meeting. My lovely bride, unbeknownst to me, alerted the other leaders to this.
For the closing ceremony, the other leaders had the scouts line up, oldest to youngest to form a tunnel that I had to pass through, while they sang happy birthday to me.
At the end of the tunnel was my youngest son and a pie pan full of whipped cream.