Unroll some of the tape from the roll and carefully stick your doll face down, trying to get as much of the body as possible on the tape. It's okay if some of it sticks out.
Next, cut the tape from the roll. You can cut off the excess tape if you want, but it's not necessary. Press all over the tape to make sure it sticks well, but make sure you don't crease it or create air bubbles. Repeat the process on the other side of the doll.
When both sides have been taped, cut out the doll.
Now your doll is water resistant (but not waterproof, so be careful!) and less likely to tear during play. The one downside is that now you can't change any part of the doll's face or body, so it's best to correct any problems before you tape the doll.
Don't forget to enter the contest!