LIVALE Coffee Cup Rack Wall Mounted - Coffee Mug Hanger Wall Mug Rack in Kitchen or Coffee Bar for Mug Display or Storage, Wall Coffee Mug Holder - Space Saver : Amazon.co.uk:
joeji's Kitchen Hanging Mug Holder & Cupboard Organiser - Hooks for up to 10 Coffee Tea Mugs - Under Kitchen Cupboard Shelf - Ideal as Cup Holder or Mug Rack : Amazon.co.uk:
Kitchen Cup Storage Rack 12 Hooks Cabinet Hanging Cup Holder - Temu United Kingdom
easy DIY mug rack using the fintorp system from IKEA