Preheat your oven to 375°F (190°C). Line a baking sheet with parchment paper.

Unroll the crescent roll dough and cut it into thin strips (about 1/4-inch wide).

Take each hot dog and wrap the dough strips around it, leaving a small space for the "face" of the mummy. Continue wrapping until the hot dog is mostly covered. Optionally, brush the dough with beaten egg for a golden finish.

Place the wrapped hot dogs on the prepared baking sheet and bake for 12-15 minutes, or until the dough is golden brown.

Use small dots of mustard or ketchup to create eyes on the exposed area of each hot dog.

Let cool slightly before serving. Serve with extra mustard or ketchup for dipping.