Normally, his favorite flavor to purchase is cookies & cream. So we purchased some Oreos and I gave the boys a mission - remove the cream from the middle of half the package of cookies for Dad to make his own cookies & cream ice cream.
They happily obeyed for once.
My dudes can put away the cookies! Well, except Seth. He's never had a cookie. Never. Not once.
File that under "weird sensory issues of the autistic one" (and that's one large file).
Anyway, mission accepted and accomplished (in about four minutes).