i really like these cufflinks by alice made this. the first collection consists of four designs, which are cnc-lathed out of copper, brass or stainless steel. above is 'alexander', with 'edward' 'dawson' and 'jasper' in the below images.
one of the main things i like about these is how the process is so evident in the form, which is why i was so glad to find this making-of video!
prices start at £85 for a set, direct from alice made this.