Roll out croissant dough on a cookie sheet lined with parchment paper. Freeze dough for 15 minutes.
While dough chills take a paring knife and cut hot dogs into little people. With the paring knife make an incision 3⁄4 of the way up on the left and right of hot dog to make arms. Then make an incision in the middle of the hog dog half way down to create legs.
Remove the dough from the freezer and with a spice cutter or pizza cutter slice the dough into little strings. Leave an opening at the top for the eyes.
Wrap each hot dog with strings of dough to create a wrapped mummy.
Place the wrapped hot dog mummies on a cookie sheet and bake for 15 minutes and 350 degrees.
Once the hot dog mummies have cooled take a tube of mustard and paint on two little eyes where you left an opening at the top.