That makes me think of a specialty sub-category of toy soldier collecting: Collecting things that reference toy soldiers (ephemera, I think the collectibles experts call things like that). For example, over the years, at various shows, I have seen a couple different examples of jigsaw puzzles depicting collections of toy soldiers (one, I think, showed stacks of opened Britians boxes).
There's a trivia question: How many movie references to toy soldiers can you name? I can think of four, right off the bat:
"Toys" (1992) with Robin Williams, there are scenes in the toy factory of a production line churning out dimestore figures
"Three Days of the Condor" (1975), with a quick shot of Max von Sydow as Jobert the assassin, painting a Stadden hussar figure
"Murder at 1600" (1997), Wesley Snipes as Detective Regis, with the Civil War diorama in his living room (pretty sure that was in "Murder at 1600", I know it was Snipes as the detective)
"The Living Daylights" (1987) Joe Don Baker as the maniacal arms dealer whose lair included his arms and armor collection, as well as case after case of toy soldiers. I think that might have been part of the old Forbes collection.
Anyone think of any others?