I needed 55 for my first heart, but this depends on how big yours is.
Make some bigger ones, some smaller.
All sizes! Glue them to the first heart's borders as you make them.
Keep making and gluing more to fill the whole heart.
The sides are not all straight so make sure to follow the round borders.
fill the heart with more loose coils like you did for the first heart.
The cover is done!.