Line a baking sheet with parchment and lightly butter your hands.

Melt butter in a large pot over low heat.

Add marshmallows and stir constantly until fully melted and smooth, about 3 to 4 minutes (it will stretch into long strands off the spoon when ready).

Remove from heat and fold in cereal and crushed pretzels until evenly coated.

Let the mixture cool 5 minutes, just until warm enough to handle without burning your hands.

Scoop 1/3-cup portions and shape into football ovals with buttered hands; place on the parchment.

Let treats set at room temperature 15 minutes, until firm enough to hold their shape when lifted.

Melt chocolate in 30-second bursts until smooth, then dip the top half of each football.

Let the chocolate set 10 minutes, then pipe white icing laces down the center of each.