I’m a rather sceptical believer, so not sure how this provides one of your 5 a day. It was one of 8 SB’s in a day. Does it qualify therefore?
In the early nineties, Herb Miller led a product development project code named Silver Bullet. The team started collecting pairs of words where the first started with an S and the second with a B. This website is the continuation of that part of the project. Nowadays other projects display alternatives to their official acronyms on their websites.