….. and silver sentiment circles from CraftWork Cards, backed on red on the other side (Product Code: 03 006 000 23)
http://craftworkcards.co.uk/products/1585/in-circles-christmas-gold-silver.html
I have found that the best price to get these mints is BM Bargains as I prefer the milk ones. A box there usually costs £1.99. Finding them in the supermarket is generally a bit hit and miss but they usually cost about £3.69 a box, unless they are on BOGOF. When I see them in BM Bargains I always check the best before date first (these were August 2014) and then stock up!