Variegated Holly cuttings (Norwich NR1)

Does anyone have a variegated Holly, please see pictures. (Ilex aquifolium 'Argentea Marginata' - Female Silver Variegated Holly).

Or alternatively, any other interesting evergreen shrubs, that it would be okay to take heel cuttings from, ...pretty please? Late July, early August is the perfect time to propogate from established plants/shrubs. Thanks for any consideration.

Thanks and regards. ☺️ 👍🏽