Grease a 12x17" baking sheet.
Melt butter in a 2 quart saucepan over medium heat.
Add marshmallows and stir until smooth.
Remove mixture from heat and stir in rice cereal until it is evenly coated.
Turn the baking sheet so that the shorter ends are at the top and bottom.
Then press the marshmallow mixture onto the sheet, distributing it evenly.
Starting at one side an inch up from the lower edge, place gummy worms atop the mixture end to end in a horizontal line.
Gently roll the lower edge of the marshmallow mixture over the gummy worms.
Then stop and cut the log away from the rest of the mixture.
Use the same method to form 4 more logs.
Slice each log into 1 inch thick"sushi" rolls and wrap them individually with a strip of fruit roll-ups.
