I have been searching for hidden cap snaps for a while as I want it to be hidden between two layers of leather and also be unspotable. I couldn't find anything except from Linton who has some premium Prym snaps that are out of my budget. I have once heard that you can split a snap's cap at half. Is there anyone familiar with such technique? If anyone knows any supplier of such flat cap snaps I would really apreciate it if you could share some information.