Melt together marshmallows and butter until it stirs smooth.
Stir in the cereal.
Scoop mixture into greased pan and then press firmly to form a uniform bar. Allow to cool and set.
Cut bars into rectangle or squares and set aside.
Gently melt white chocolate just until it will stir smooth. Be careful not to scorch it.
Dip each rice crispy bar into the white chocolate and place chocolate side up on a piece of wax paper.
Affix two eyeballs to each bar. Once they are all dipped, place in the refrigerator for a minute or two to set the tops.
Place remaining white chocolate in a small plastic bag or piping bag. Cut a small hole in the corner and drizzle chocolate “wraps” over the mummies. Allow to set.
Store in an airtight container until ready to serve.