As a starter pack, or a gift pack, why not try a GOTS/OEKO-TEX® Combo?
We have paired a plain GOTS Flannel hankie with a selection of AGF (Art Gallery Fabrics) Studio hankies. They are only £6.50 a pack.
AGF Hankies measure about 26.5cm (10½”) in width.
Plain Flannel hankies are 30cm/11¾” in width.
GOTS information here. And OEKO-TEX® information here.
To buy OEKO-TEX® Combo Hankies
Please note that the "Warm and Cosy Frost" and "Wonky Check" fabrics feature lines of patterns which are not straight against the edges of the handkerchiefs. They have been printed in a "wonky" manner.
You can also buy these fabrics for your own sewing here.