Trousers to Grow Into

When I was a youngster my parents bought me a pair of braces to hold up my new trousers. Of course these were 'Trousers to grow into' and without such support I would have been running around bare arsed. The braces were blue and had pictures of planets and rockets and, in the box, was a genuine ticket to the Moon.
I know, because it said so.
Somewhere in a landfill site, many many years ago...