Tools needed: masking tape, razor blade, comic bag, and board.
Tape a rectangle over the area where you want the signature to be signed.
Remove the comic from the bag. With the razor blade, cut the inside of the bags taped area. You should be able to safely remove the cut piece from the bag.
Place the comic book back into the bag. Put the comic already bagged into a bigger 2nd slightly larger bag to keep it protected.
Full width intro with image background, color overlay and a picture on the left. You can easily change the size of image in block parameters.
Center the comic/s in the center (comic face down) of the cardboard and tape each edge tightly over the edge.
Place the 2nd piece of cardboard over the back of the comic book/s, line it up edge to edge. Tape the edges with masking tape tightly.
Grab a box slightly taller and wider than the comics you've taped together, then with it centered put bubble wrap around it and in the edges.