For our cosmetic bag we need:
Fabric, I always take three different ones. One lining and two for the outside. It is recommended if a larger pattern is to combine with a monochrome fabric or a quiet pattern. Better use the darker fabric for the floor. But in the end it is a matter of taste. If you buy extra fabric for this then you need 30 cm of the lining fabric and 15 cm of the other two with full fabric width. Any non-stretchable fabric can be chosen. Usually, however, is pure cotton.
A 35 cm zipper
Ribbons, buttons, embroidery or piping to decorate. I have renounced this
Scissors or better still roll cutter
A ruler or triangle
matching yarn to both outer fabrics. For all internal seams I use plain white yarn
if necessary, a sewing needle
(Steam) iron and ironing board
a sewing machine (goes without saying, right?)
4 DinA4 leaves, better still cardboard
The basis for the bag shown above is a DINA4 sheet. Take this across, cut out corners below and glue up 2 cm. Thus, the bag later has the dimensions 17 x 27cm, 15 cm high.
If your bag (like mine here) should consist of 2 different outer fabrics you need 2 more cuts.