Ornamental willow cuttings (Matson, Gloucester GL4 6)

Bit of a long shot perhaps but if anyone has an ornamental willow in their garden that I could take some cuttings from that would be excellent. I'm particularly interested in Salix alba ornamental varieties such as S. alba var. vitellina (Golden Willow), S. alba var. sericea (Silver Willow), S. alba 'Caerulea' (Cricket Bat Willow, Blue Willow), S. alba 'Britzensis', S. alba 'Aurea', and Salix caprea varieties such as S. caprea 'Atlas', S. caprea 'Silberglans'.