There is light- and medium-weight interfacing that will work with lightweight fabrics. Keep in mind that the interfacing should be close to the density of the zipper fabric or the fabric will pucker when sewn.
It is possible to create a dual-type Eeveelution such as Dragon/Ghost type, as it is your creation. Though Eevee currently has no dual-type Eeveelutions, this should not prevent you from...
Copper sheets previously used in solar cells can be melted down and stripped of impurities, to form high-grade copper as a product, but this would require lab equipment.
This could mean that you missed a word, or you messed up while typing. When this happens, you have to retype the word where the highlighted letter starts. Another possibility...