The Quilted Bear Air & Water Erasable Pen - Professional Multi-Purpose Fine Line Water and Air Erasable Marker Fabric Pen for Sewing, Dressmaking & Quilting : Amazon.co.uk: Stationery & Office Supplies
Sewline Air Erasable Fabric Pen, Fine Sharp Lines, Ink can be removed with water or left to vanish over a few hours or days. Sewing Tool – The Stitchery Dorset
Love Sew Heat Erasable Fabric Marking Pens – Love Sew® UK