Mortar can be tinted to blend or to contrast with the brick color. It is important to keep mortar mixing and tooling practices uniform, especially when using colored mortar. A slight variation in mortar color can have a dramatic effect on the appearance of a finished wall.
O-Card The O-Card is a Slip Case with an opening at both ends. Both the O-Card and Slipcase can be used to package multiple disc sets or single cases and packs and make you product feel a little more exclusive.
a trump card. an advantage that makes you more likely to succeed than other people, especially something that other people do not know about. Usage notes: In card games a trump card is one of a set of cards which have been chosen to have the highest value during the game. The fact that I had an Italian parent turned out to be my trump card when I applied for the job. Anthea was about to play her trump card - none of the money could be released without her signature.